Module: StateTransitionHelper
- Included in:
- ScriptExecutionState
- Defined in:
- lib/help/state_transition_helper.rb
Instance Method Summary collapse
-
#attach_volume(volume_id, instance_id, temp_device_name, timeout = 240) ⇒ Object
Attaches an EBS volume to an instance Input Parameters: * volume_id => EC2 ID for the EBS Volume to be attached * instance_id => EC2 ID for the instance to which the volume is supposed to be attached to * temp_device_name => device name to be used for attaching (e.g. /dev/sdj1).
-
#connect(dns_name, user_name, ssh_keyfile = nil, ssh_keydata = nil, trials = 10, wait_between_trials = 20) ⇒ Object
Connects to the remote host via SSH.
-
#copy_distribution(destination_path) ⇒ Object
Copy all files of a running linux distribution via rsync to a mounted directory Input Parameters: * destination_path => where to copy to.
-
#create_fs(dns_name, device) ⇒ Object
Create a file-system on a given machine (assumes to be connected already).
-
#create_labeled_fs(dns_name, device, type, label) ⇒ Object
Create a file-system on a given machine (assumes to be connected already).
-
#create_snapshot(volume_id, description = "") ⇒ Object
Creates a snapshot for an EBS volume.
-
#create_volume(availability_zone, size = "10") ⇒ Object
Creates a new EBS volume.
-
#create_volume_from_snapshot(snapshot_id, availability_zone) ⇒ Object
Creates a new EBS volume from a snapshot ID.
-
#delete_snapshot(snapshot_id) ⇒ Object
Deletes a snapshot.
-
#delete_volume(volume_id) ⇒ Object
Delete an EBS volume.
-
#detach_volume(volume_id, instance_id, timeout = 240) ⇒ Object
Detach an EBS volume from an instance.
-
#determine_file(ip, user_name, ssh_keydata, file_candidates) ⇒ Object
From a list of existing files, return the first that exists.
- #disable_ssh_tty(host) ⇒ Object
-
#disconnect ⇒ Object
If a remote command handler is connected, disconnect him silently.
- #ec2_handler ⇒ Object
- #ec2_handler=(ec2_handler) ⇒ Object
- #enable_ssh_tty(host) ⇒ Object
-
#get_aws_kernel_image_aki(source_endpoint, source_aki, target_endpoint) ⇒ Object
Mapping AmazonKernel Image IDs From documentation: docs.amazonwebservices.com/AWSEC2/latest/UserGuide/index.html?UserProvidedkernels.html * US-East-1 aki-4c7d9525 ec2-public-images/pv-grub-hd00-V1.01-i386.gz.manifest.xml aki-4e7d9527 ec2-public-images/pv-grub-hd00-V1.01-x86_64.gz.manifest.xml aki-407d9529 ec2-public-images/pv-grub-hd0-V1.01-i386.gz.manifest.xml aki-427d952b ec2-public-images/pv-grub-hd0-V1.01-x86_64.gz.manifest.xml aki-525ea73b ec2-public-images/pv-grub-hd00_1.02-i386.gz.manifest.xml aki-8e5ea7e7 ec2-public-images/pv-grub-hd00_1.02-x86_64.gz.manifest.xml aki-805ea7e9 ec2-public-images/pv-grub-hd0_1.02-i386.gz.manifest.xml aki-825ea7eb ec2-public-images/pv-grub-hd0_1.02-x86_64.gz.manifest.xml * US-West-1 aki-9da0f1d8 ec2-public-images-us-west-1/pv-grub-hd00-V1.01-i386.gz.manifest.xml aki-9fa0f1da ec2-public-images-us-west-1/pv-grub-hd00-V1.01-x86_64.gz.manifest.xml aki-99a0f1dc ec2-public-images-us-west-1/pv-grub-hd0-V1.01-i386.gz.manifest.xml aki-9ba0f1de ec2-public-images-us-west-1/pv-grub-hd0-V1.01-x86_64.gz.manifest.xml aki-87396bc2 ec2-public-images-us-west-1/pv-grub-hd00_1.02-i386.gz.manifest.xml aki-81396bc4 ec2-public-images-us-west-1/pv-grub-hd00_1.02-x86_64.gz.manifest.xml aki-83396bc6 ec2-public-images-us-west-1/pv-grub-hd0_1.02-i386.gz.manifest.xml aki-8d396bc8 ec2-public-images-us-west-1/pv-grub-hd0_1.02-x86_64.gz.manifest.xml * US-West-2 aki-dee26fee ec2-public-images-us-west-2/pv-grub-hd00-V1.01-i386.gz.manifest.xml aki-90e26fa0 ec2-public-images-us-west-2/pv-grub-hd00-V1.01-x86_64.gz.manifest.xml aki-dce26fec ec2-public-images-us-west-2/pv-grub-hd0-V1.01-i386.gz.manifest.xml aki-ace26f9c ec2-public-images-us-west-2/pv-grub-hd0-V1.01-x86_64.gz.manifest.xml aki-c0e26ff0 ec2-public-images-us-west-2/pv-grub-hd00_1.02-i386.gz.manifest.xml aki-94e26fa4 ec2-public-images-us-west-2/pv-grub-hd00_1.02-x86_64.gz.manifest.xml aki-c2e26ff2 ec2-public-images-us-west-2/pv-grub-hd0_1.02-i386.gz.manifest.xml aki-98e26fa8 ec2-public-images-us-west-2/pv-grub-hd0_1.02-x86_64.gz.manifest.xml * EU-West-1 aki-47eec433 ec2-public-images-eu/pv-grub-hd00-V1.01-i386.gz.manifest.xml aki-41eec435 ec2-public-images-eu/pv-grub-hd00-V1.01-x86_64.gz.manifest.xml aki-4deec439 ec2-public-images-eu/pv-grub-hd0-V1.01-i386.gz.manifest.xml aki-4feec43b ec2-public-images-eu/pv-grub-hd0-V1.01-x86_64.gz.manifest.xml aki-8a6657fe ec2-public-images-eu/pv-grub-hd00_1.02-i386.gz.manifest.xml aki-60695814 ec2-public-images-eu/pv-grub-hd00_1.02-x86_64.gz.manifest.xml aki-64695810 ec2-public-images-eu/pv-grub-hd0_1.02-i386.gz.manifest.xml aki-62695816 ec2-public-images-eu/pv-grub-hd0_1.02-x86_64.gz.manifest.xml * AP-SouthEast-1 aki-6fd5aa3d ec2-public-images-ap-southeast-1/pv-grub-hd00-V1.01-i386.gz.manifest.xml aki-6dd5aa3f ec2-public-images-ap-southeast-1/pv-grub-hd00-V1.01-x86_64.gz.manifest.xml aki-13d5aa41 ec2-public-images-ap-southeast-1/pv-grub-hd0-V1.01-i386.gz.manifest.xml aki-11d5aa43 ec2-public-images-ap-southeast-1/pv-grub-hd0-V1.01-x86_64.gz.manifest.xml aki-a0225af2 ec2-public-images-ap-southeast-1/pv-grub-hd00_1.02-i386.gz.manifest.xml aki-a6225af4 ec2-public-images-ap-southeast-1/pv-grub-hd00_1.02-x86_64.gz.manifest.xml aki-a4225af6 ec2-public-images-ap-southeast-1/pv-grub-hd0_1.02-i386.gz.manifest.xml aki-aa225af8 ec2-public-images-ap-southeast-1/pv-grub-hd0_1.02-x86_64.gz.manifest.xml * AP-NorthEast-1 aki-d209a2d3 ec2-public-images-ap-northeast-1/pv-grub-hd0-V1.01-i386.gz.manifest.xml aki-d409a2d5 ec2-public-images-ap-northeast-1/pv-grub-hd0-V1.01-x86_64.gz.manifest.xml aki-d609a2d7 ec2-public-images-ap-northeast-1/pv-grub-hd00-V1.01-i386.gz.manifest.xml aki-d809a2d9 ec2-public-images-ap-northeast-1/pv-grub-hd00-V1.01-x86_64.gz.manifest.xml aki-e85df7e9 ec2-public-images-ap-northeast-1/pv-grub-hd00_1.02-i386.gz.manifest.xml aki-ea5df7eb ec2-public-images-ap-northeast-1/pv-grub-hd00_1.02-x86_64.gz.manifest.xml aki-ec5df7ed ec2-public-images-ap-northeast-1/pv-grub-hd0_1.02-i386.gz.manifest.xml aki-ee5df7ef ec2-public-images-ap-northeast-1/pv-grub-hd0_1.02-x86_64.gz.manifest.xml * SA-East-1 aki-cc3ce3d1 ec2-public-images-sa-east-1/pv-grub-hd0_1.02-x86_64.gz.manifest.xml aki-bc3ce3a1 ec2-public-images-sa-east-1/pv-grub-hd0_1.02-i386.gz.manifest.xml aki-d23ce3cf ec2-public-images-sa-east-1/pv-grub-hd00_1.02-x86_64.gz.manifest.xml aki-823ce39f ec2-public-images-sa-east-1/pv-grub-hd00_1.02-i386.gz.manifest.xml.
- #get_aws_region_from_endpoint(endpoint) ⇒ Object
-
#get_partition_fs_type(part) ⇒ Object
Get partition filesytem type.
-
#get_partition_fs_type_and_label(part) ⇒ Object
Get partition filesytem type and label.
-
#get_partition_label(part) ⇒ Object
Get partition label.
-
#get_root_device_name ⇒ Object
Get root partition.
-
#get_root_partition_fs_type ⇒ Object
Get root filesytem type.
-
#get_root_partition_fs_type_and_label ⇒ Object
Get root filesytem type and label.
-
#get_root_partition_label ⇒ Object
Get root partition label.
-
#get_root_volume_id(instance_id) ⇒ Object
Retrieve the root volume ID of an instance.
-
#launch_instance(ami_id, key_name, security_group_name, ec2_handler = nil, type = nil, availability_zone = nil) ⇒ Object
Launch an instance based on an AMI ID Input Parameters: * ami_id => ID of the AMI to be launched * key_name => name of the key to access the instance * security_group_name => name of the security group to be used * type => type of instance to start Returned information: * instance_id => ID of the started instance * dns_name => DNS name of the started instance * availability_zone => Availability zone of the started instance * kernel_id => EC2 Kernel ID of the started instance * ramdisk_id => EC2 Ramdisk ID of the started instance * architecture => architecture (e.g. 386i, 64x) of the started instance.
-
#local_decompress_and_dump_file_to_device(source_filename, target_device) ⇒ Object
decompress and dump a file using gunzip and dd.
-
#local_dump_and_compress_device_to_file(source_device, target_filename) ⇒ Object
dump and compress a device using dd and gzip.
- #mount_fs(mount_point, device) ⇒ Object
-
#mount_fs_old(mount_point, device) ⇒ Object
Create a file-system on a given machine (assumes to be connected already).
-
#register_snapshot(snapshot_id, name, root_device_name, description, kernel_id, ramdisk_id, architecture) ⇒ Object
Registers a snapshot as EBS-booted AMI.
- #remote_copy(user_name, keyname, source_dir, dest_machine, dest_user, dest_dir) ⇒ Object
- #remote_copy_old(user_name, keyname, source_dir, dest_machine, dest_dir) ⇒ Object
-
#remote_handler ⇒ Object
setting/retrieving handlers.
- #remote_handler=(remote_handler) ⇒ Object
- #retrieve_instances ⇒ Object
- #retrieve_security_groups ⇒ Object
-
#shut_down_instance(instance_id) ⇒ Object
Shuts down an instance.
-
#snapshot_accessible(snapshot_id) ⇒ Object
Is Snapshot accessible?.
-
#start_instance(instance_id, timeout = 240) ⇒ Object
Start an instance Input Paramters: * instance_id => ID of the instance to start * timeout => a timeout for waiting instance to start to avoid infinite loop (default set to 4m) Return Parameters (Array): * instance_id * public_dns_name.
-
#stop_instance(instance_id, timeout = 240) ⇒ Object
Stop an instance.
-
#unmount_fs(mount_point) ⇒ Object
Unmount a drive Input Parameters: * mount_point => directory to be unmounted.
- #upload_file(ip, user, key_data, file, target_file) ⇒ Object
-
#zip_volume(source_dir, zip_file_dest, zip_file_name) ⇒ Object
Zips all files on a mounted-directory into a file Input Parameters: * source_dir => where to copy from * zip_file_dest => path where the zip-file should be stored # zip_file_name => name of the zip file (without .zip suffix).
Instance Method Details
#attach_volume(volume_id, instance_id, temp_device_name, timeout = 240) ⇒ Object
Attaches an EBS volume to an instance Input Parameters:
-
volume_id => EC2 ID for the EBS Volume to be attached
-
instance_id => EC2 ID for the instance to which the volume is supposed to be attached to
-
temp_device_name => device name to be used for attaching (e.g. /dev/sdj1)
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# File 'lib/help/state_transition_helper.rb', line 353 def attach_volume(volume_id, instance_id, temp_device_name, timeout = 240) ("going to attach volume #{volume_id} to instance #{instance_id} on device #{temp_device_name}...") @logger.info "attach volume #{volume_id} to instance #{instance_id} on device #{temp_device_name} (using a timeout of #{timeout})s" ec2_handler().attach_volume(:volume_id => volume_id, :instance_id => instance_id, :device => temp_device_name ) done = false #timeout = 120 while timeout > 0 res = ec2_handler().describe_volumes(:volume_id => volume_id) vol_state = res['volumeSet']['item'][0]['status'] = "attaching" if res['volumeSet']['item'][0]['attachmentSet'] != nil = res['volumeSet']['item'][0]['attachmentSet']['item'][0]['status'] end @logger.debug "storage attaching: volume state: #{vol_state}, attachment state: #{}" if vol_state == 'in-use' && == 'attached' done = true timeout = 0 end sleep(5) timeout -= 5 end msg = "" if !done msg = "Failed to attach volume '#{volume_id}' to instance '#{instance_id}" @logger.error "#{msg}" raise Exception.new("volume #{volume_id} not attached") else msg = "volume #{volume_id} successfully attached" @logger.info "#{msg}" end ("#{msg}") end |
#connect(dns_name, user_name, ssh_keyfile = nil, ssh_keydata = nil, trials = 10, wait_between_trials = 20) ⇒ Object
Connects to the remote host via SSH. Params:
-
dns_name => machine to connect to
-
user_name => name to be used for connection
-
ssh_keyfile => key-file used for ssh
-
ssh_keydata => contents of key-file (either use ssh_keyfile or ssh_keydata)
Returns:
-
OS of the connected machine
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# File 'lib/help/state_transition_helper.rb', line 41 def connect(dns_name, user_name, ssh_keyfile = nil, ssh_keydata = nil, trials = 10, wait_between_trials = 20) ("connecting '#{user_name}' to #{dns_name}...") connected = false last_connection_problem = "" remaining_trials = trials-1 while !connected && remaining_trials > 0 remaining_trials -= 1 if ssh_keyfile != nil begin @logger.info("connecting using keyfile") remote_handler().connect_with_keyfile(dns_name, ssh_keyfile) connected = true rescue Exception => e @logger.info("connection failed due to #{e}") last_connection_problem = "#{e}" @logger.debug(e.backtrace.select(){|line| line.include?("state_transition_helper")}.join("\n")) end elsif ssh_keydata != nil begin @logger.info("connecting using keydata") remote_handler().connect(dns_name, user_name, ssh_keydata) connected = true rescue Exception => e @logger.info("connection failed due to #{e}") last_connection_problem = "#{e}" @logger.debug(e.backtrace.select(){|line| line.include?("state_transition_helper")}.join("\n")) end else raise Exception.new("no key information specified") end if !connected sleep(wait_between_trials) #try again end end if !connected raise Exception.new("connection attempts stopped (#{last_connection_problem})") end os = remote_handler().retrieve_os() sudo = remote_handler().use_sudo ? " [sudo]" : "" ("connected to #{dns_name}#{sudo}. OS installed is #{os}") @logger.info "connected to #{dns_name}#{sudo}" return os end |
#copy_distribution(destination_path) ⇒ Object
Copy all files of a running linux distribution via rsync to a mounted directory Input Parameters:
-
destination_path => where to copy to
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# File 'lib/help/state_transition_helper.rb', line 814 def copy_distribution(destination_path) ("going to start copying files to #{destination_path}. This may take quite a time...") @logger.debug "start copying to #{destination_path}" start = Time.new.to_i if remote_handler().tools_installed?("rsync") @logger.debug "use rsync command line" status = remote_handler().local_rsync("/", "#{destination_path}", "#{destination_path}") status = remote_handler().local_rsync("/dev/", "#{destination_path}/dev/") if status == false raise Exception.new("failed to copy distribution remotely using rsync") end else @logger.debug "use cp command line" status = remote_handler().local_rcopy("/", "#{destination_path}", "/proc /sys /dev /mnt") if status == false raise Exception.new("failed to copy distribution remotely using cp") end status = remote_handler().mkdir("#{destination_path}/proc") status = remote_handler().mkdir("#{destination_path}/sys") status = remote_handler().mkdir("#{destination_path}/mnt") status = remote_handler().mkdir("#{destination_path}/dev") end endtime = Time.new.to_i @logger.info "copy took #{(endtime-start)}s" ("copying is done (took #{endtime-start})s") end |
#create_fs(dns_name, device) ⇒ Object
Create a file-system on a given machine (assumes to be connected already). Input Parameters:
-
dns_name => IP used
-
device => device to be used for file-system creation (e.g. /dev/sdj)
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# File 'lib/help/state_transition_helper.rb', line 520 def create_fs(dns_name, device) ("going to create filesystem on #{dns_name} to #{device}...") @logger.debug "create filesystem on #{dns_name} to #{device}" status = remote_handler().create_filesystem("ext3", device) if status == false raise Exception.new("failed to create ext3 filesystem on #{device} device on #{dns_name}") end ("filesystem system successfully created") end |
#create_labeled_fs(dns_name, device, type, label) ⇒ Object
Create a file-system on a given machine (assumes to be connected already). Input Parameters:
-
dns_name => IP used
-
device => device to be used for file-system creation (e.g. /dev/sdj)
-
type => filesystem type (ext2, ext3, ext4)
-
label => add a label to the partition
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# File 'lib/help/state_transition_helper.rb', line 536 def create_labeled_fs(dns_name, device, type, label) ("going to create filesystem on #{dns_name} to #{device}...") @logger.debug "create filesystem of type '#{type}' (default is ext3) on '#{dns_name}' to '#{device}'" fs_type = "ext3" if !type.nil? && !type.empty? fs_type = type end @logger.debug "create '#{fs_type}' filesystem on device '#{device}'" status = remote_handler().create_filesystem(fs_type, device) if status == false raise Exception.new("failed to create #{type} filesystem on #{device} device on #{dns_name}") end ("#{fs_type} filesystem system successfully created on device #{device}") if !label.nil? && !label.empty? ("going to add label #{label} for device #{device}...") @logger.debug "add label '#{label}' to device '#{device}'" if remote_handler().set_device_label_ext(device, label, fs_type) ("label #{label} added to device #{device}") else raise Exception.new("failed to add label #{label} to device #{device}") end end end |
#create_snapshot(volume_id, description = "") ⇒ Object
Creates a snapshot for an EBS volume.
- Input Parameters
-
volume_id => EC2 ID for the EBS volume to be snapshotted
Returns:
-
snapshot_id => EC2 ID for the snapshot created
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# File 'lib/help/state_transition_helper.rb', line 439 def create_snapshot(volume_id, description = "") ("going to create a snapshot for volume #{volume_id}...") @logger.debug "create snapshot for volume #{volume_id}" res = ec2_handler().create_snapshot(:volume_id => volume_id, :description => description) snapshot_id = res['snapshotId'] @logger.info "snapshot_id = #{snapshot_id}" done = false while !done sleep(5) #TODO: check for timeout? res = ec2_handler().describe_snapshots(:snapshot_id => snapshot_id) @logger.debug "snapshot creating: #{res.inspect}" if res['snapshotSet']['item'][0]['status'] == 'completed' done = true end end ("snapshot is done with ID=#{snapshot_id}") return snapshot_id end |
#create_volume(availability_zone, size = "10") ⇒ Object
Creates a new EBS volume. Input Parameters:
-
availability_zone => availability zone for the volume
-
size => size in Gigabytes
Returns
-
volume_id => EC2 EBS Volume ID
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# File 'lib/help/state_transition_helper.rb', line 301 def create_volume(availability_zone, size = "10") ("going to create a new EBS volume of size #{size}GB...") @logger.debug "create volume in zone #{availability_zone}" res = ec2_handler().create_volume(:availability_zone => availability_zone, :size => size.to_s) volume_id = res['volumeId'] started = false while !started sleep(5) #TODO: check for timeout? res = ec2_handler().describe_volumes(:volume_id => volume_id) state = res['volumeSet']['item'][0]['status'] @logger.debug "volume state #{state}" if state == 'available' started = true end end ("EBS volume #{volume_id} is ready") return volume_id end |
#create_volume_from_snapshot(snapshot_id, availability_zone) ⇒ Object
Creates a new EBS volume from a snapshot ID. Input Parameters:
-
availability_zone => availability zone for the volume
-
size => size of the volume to be created
-
snapshot_id => EC2 Snapshot ID used to create the volume
Returns
-
volume_id => EC2 EBS Volume ID created
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# File 'lib/help/state_transition_helper.rb', line 328 def create_volume_from_snapshot(snapshot_id, availability_zone) ("going to create a new EBS volume from the specified snapshot...") @logger.debug "create volume in zone #{availability_zone}" res = ec2_handler().create_volume(:snapshot_id => snapshot_id, :availability_zone => availability_zone) volume_id = res['volumeId'] started = false while !started sleep(5) #TODO: check for timeout? res = ec2_handler().describe_volumes(:volume_id => volume_id) state = res['volumeSet']['item'][0]['status'] @logger.debug "volume state #{state}" if state == 'available' started = true end end ("EBS volume #{volume_id} is ready") return volume_id end |
#delete_snapshot(snapshot_id) ⇒ Object
Deletes a snapshot.
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# File 'lib/help/state_transition_helper.rb', line 461 def delete_snapshot(snapshot_id) ("going to delete snapshot #{snapshot_id}...") @logger.info("going to delete snapshot #{snapshot_id}...") ec2_handler().delete_snapshot(:snapshot_id => snapshot_id) @logger.info("snapshot #{snapshot_id} deleted") ("snapshot #{snapshot_id} deleted") end |
#delete_volume(volume_id) ⇒ Object
Delete an EBS volume. Input Parameters:
-
volume_id => EC2 ID for the EBS Volume to be deleted
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# File 'lib/help/state_transition_helper.rb', line 427 def delete_volume(volume_id) ("going to delete volume #{volume_id} (no longer needed)...") @logger.debug "delete volume #{volume_id}" ec2_handler().delete_volume(:volume_id => volume_id) ("volume #{volume_id} deleted") end |
#detach_volume(volume_id, instance_id, timeout = 240) ⇒ Object
Detach an EBS volume from an instance. Input Parameters:
-
volume_id => EC2 ID for the EBS Volume to be detached
-
instance_id => EC2 ID for the instance to detach from
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# File 'lib/help/state_transition_helper.rb', line 393 def detach_volume(volume_id, instance_id, timeout = 240) ("going to detach volume #{volume_id} from instance #{instance_id}...") @logger.info "detach volume #{volume_id} from instance #{instance_id} (using a timeout of #{timeout})s" ec2_handler().detach_volume(:volume_id => volume_id, :instance_id => instance_id ) done = false #timeout = 120 while timeout > 0 sleep(3) res = ec2_handler().describe_volumes(:volume_id => volume_id) @logger.debug "volume detaching: #{res.inspect}" if res['volumeSet']['item'][0]['status'] == 'available' done = true timeout = 0 end sleep(5) timeout -= 5 end msg = "" if !done msg = "Failed to detach volume '#{volume_id}' from instance '#{instance_id}" @logger.error "#{msg}" raise Exception.new("volume #{volume_id} not detached") else msg = "volume #{volume_id} successfully detached" @logger.info "#{msg}" end ("#{msg}") end |
#determine_file(ip, user_name, ssh_keydata, file_candidates) ⇒ Object
From a list of existing files, return the first that exists
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# File 'lib/help/state_transition_helper.rb', line 956 def determine_file(ip, user_name, ssh_keydata, file_candidates) connect(ip, user_name, nil, ssh_keydata) begin file_candidates.each() {|file_path| if remote_handler().file_exists?(file_path) return file_path end } return nil rescue raise ensure disconnect() end end |
#disable_ssh_tty(host) ⇒ Object
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# File 'lib/help/state_transition_helper.rb', line 917 def disable_ssh_tty(host) ("going to disable SSH tty on #{host}...") @logger.debug "disable SSH tty on #{host}" remote_handler().disable_sudoers_requiretty() ("SSH tty disabled") end |
#disconnect ⇒ Object
If a remote command handler is connected, disconnect him silently.
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# File 'lib/help/state_transition_helper.rb', line 87 def disconnect begin remote_handler().disconnect() rescue end self.remote_handler= nil end |
#ec2_handler ⇒ Object
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# File 'lib/help/state_transition_helper.rb', line 1186 def ec2_handler() if @ec2_handler == nil @ec2_handler = @context[:ec2_api_handler] end @ec2_handler end |
#ec2_handler=(ec2_handler) ⇒ Object
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# File 'lib/help/state_transition_helper.rb', line 1193 def ec2_handler=(ec2_handler) @ec2_handler = ec2_handler end |
#enable_ssh_tty(host) ⇒ Object
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# File 'lib/help/state_transition_helper.rb', line 924 def enable_ssh_tty(host) ("going to enable SSH tty on #{host}...") @logger.debug "enable SSH tty on #{host}" remote_handler().enable_sudoers_requiretty() ("SSH tty enabled") end |
#get_aws_kernel_image_aki(source_endpoint, source_aki, target_endpoint) ⇒ Object
Mapping AmazonKernel Image IDs From documentation: docs.amazonwebservices.com/AWSEC2/latest/UserGuide/index.html?UserProvidedkernels.html
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US-East-1
aki-4c7d9525 ec2-public-images/pv-grub-hd00-V1.01-i386.gz.manifest.xml aki-4e7d9527 ec2-public-images/pv-grub-hd00-V1.01-x86_64.gz.manifest.xml aki-407d9529 ec2-public-images/pv-grub-hd0-V1.01-i386.gz.manifest.xml aki-427d952b ec2-public-images/pv-grub-hd0-V1.01-x86_64.gz.manifest.xml aki-525ea73b ec2-public-images/pv-grub-hd00_1.02-i386.gz.manifest.xml aki-8e5ea7e7 ec2-public-images/pv-grub-hd00_1.02-x86_64.gz.manifest.xml aki-805ea7e9 ec2-public-images/pv-grub-hd0_1.02-i386.gz.manifest.xml aki-825ea7eb ec2-public-images/pv-grub-hd0_1.02-x86_64.gz.manifest.xml
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US-West-1
aki-9da0f1d8 ec2-public-images-us-west-1/pv-grub-hd00-V1.01-i386.gz.manifest.xml aki-9fa0f1da ec2-public-images-us-west-1/pv-grub-hd00-V1.01-x86_64.gz.manifest.xml aki-99a0f1dc ec2-public-images-us-west-1/pv-grub-hd0-V1.01-i386.gz.manifest.xml aki-9ba0f1de ec2-public-images-us-west-1/pv-grub-hd0-V1.01-x86_64.gz.manifest.xml aki-87396bc2 ec2-public-images-us-west-1/pv-grub-hd00_1.02-i386.gz.manifest.xml aki-81396bc4 ec2-public-images-us-west-1/pv-grub-hd00_1.02-x86_64.gz.manifest.xml aki-83396bc6 ec2-public-images-us-west-1/pv-grub-hd0_1.02-i386.gz.manifest.xml aki-8d396bc8 ec2-public-images-us-west-1/pv-grub-hd0_1.02-x86_64.gz.manifest.xml
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US-West-2
aki-dee26fee ec2-public-images-us-west-2/pv-grub-hd00-V1.01-i386.gz.manifest.xml aki-90e26fa0 ec2-public-images-us-west-2/pv-grub-hd00-V1.01-x86_64.gz.manifest.xml aki-dce26fec ec2-public-images-us-west-2/pv-grub-hd0-V1.01-i386.gz.manifest.xml aki-ace26f9c ec2-public-images-us-west-2/pv-grub-hd0-V1.01-x86_64.gz.manifest.xml aki-c0e26ff0 ec2-public-images-us-west-2/pv-grub-hd00_1.02-i386.gz.manifest.xml aki-94e26fa4 ec2-public-images-us-west-2/pv-grub-hd00_1.02-x86_64.gz.manifest.xml aki-c2e26ff2 ec2-public-images-us-west-2/pv-grub-hd0_1.02-i386.gz.manifest.xml aki-98e26fa8 ec2-public-images-us-west-2/pv-grub-hd0_1.02-x86_64.gz.manifest.xml
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EU-West-1
aki-47eec433 ec2-public-images-eu/pv-grub-hd00-V1.01-i386.gz.manifest.xml aki-41eec435 ec2-public-images-eu/pv-grub-hd00-V1.01-x86_64.gz.manifest.xml aki-4deec439 ec2-public-images-eu/pv-grub-hd0-V1.01-i386.gz.manifest.xml aki-4feec43b ec2-public-images-eu/pv-grub-hd0-V1.01-x86_64.gz.manifest.xml aki-8a6657fe ec2-public-images-eu/pv-grub-hd00_1.02-i386.gz.manifest.xml aki-60695814 ec2-public-images-eu/pv-grub-hd00_1.02-x86_64.gz.manifest.xml aki-64695810 ec2-public-images-eu/pv-grub-hd0_1.02-i386.gz.manifest.xml aki-62695816 ec2-public-images-eu/pv-grub-hd0_1.02-x86_64.gz.manifest.xml
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AP-SouthEast-1
aki-6fd5aa3d ec2-public-images-ap-southeast-1/pv-grub-hd00-V1.01-i386.gz.manifest.xml aki-6dd5aa3f ec2-public-images-ap-southeast-1/pv-grub-hd00-V1.01-x86_64.gz.manifest.xml aki-13d5aa41 ec2-public-images-ap-southeast-1/pv-grub-hd0-V1.01-i386.gz.manifest.xml aki-11d5aa43 ec2-public-images-ap-southeast-1/pv-grub-hd0-V1.01-x86_64.gz.manifest.xml aki-a0225af2 ec2-public-images-ap-southeast-1/pv-grub-hd00_1.02-i386.gz.manifest.xml aki-a6225af4 ec2-public-images-ap-southeast-1/pv-grub-hd00_1.02-x86_64.gz.manifest.xml aki-a4225af6 ec2-public-images-ap-southeast-1/pv-grub-hd0_1.02-i386.gz.manifest.xml aki-aa225af8 ec2-public-images-ap-southeast-1/pv-grub-hd0_1.02-x86_64.gz.manifest.xml
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AP-NorthEast-1
aki-d209a2d3 ec2-public-images-ap-northeast-1/pv-grub-hd0-V1.01-i386.gz.manifest.xml aki-d409a2d5 ec2-public-images-ap-northeast-1/pv-grub-hd0-V1.01-x86_64.gz.manifest.xml aki-d609a2d7 ec2-public-images-ap-northeast-1/pv-grub-hd00-V1.01-i386.gz.manifest.xml aki-d809a2d9 ec2-public-images-ap-northeast-1/pv-grub-hd00-V1.01-x86_64.gz.manifest.xml aki-e85df7e9 ec2-public-images-ap-northeast-1/pv-grub-hd00_1.02-i386.gz.manifest.xml aki-ea5df7eb ec2-public-images-ap-northeast-1/pv-grub-hd00_1.02-x86_64.gz.manifest.xml aki-ec5df7ed ec2-public-images-ap-northeast-1/pv-grub-hd0_1.02-i386.gz.manifest.xml aki-ee5df7ef ec2-public-images-ap-northeast-1/pv-grub-hd0_1.02-x86_64.gz.manifest.xml
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SA-East-1
aki-cc3ce3d1 ec2-public-images-sa-east-1/pv-grub-hd0_1.02-x86_64.gz.manifest.xml aki-bc3ce3a1 ec2-public-images-sa-east-1/pv-grub-hd0_1.02-i386.gz.manifest.xml aki-d23ce3cf ec2-public-images-sa-east-1/pv-grub-hd00_1.02-x86_64.gz.manifest.xml aki-823ce39f ec2-public-images-sa-east-1/pv-grub-hd00_1.02-i386.gz.manifest.xml
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# File 'lib/help/state_transition_helper.rb', line 1033 def get_aws_kernel_image_aki(source_endpoint, source_aki, target_endpoint) map = { 'us-east-1' => {'aki-4c7d9525' => 'pv-grub-hd00-V1.01-i386', 'aki-4e7d9527' => 'pv-grub-hd00-V1.01-x86_64', 'aki-407d9529' => 'pv-grub-hd0-V1.01-i386', 'aki-427d952b' => 'pv-grub-hd0-V1.01-x86_64', 'aki-525ea73b' => 'pv-grub-hd00_1.02-i386', 'aki-8e5ea7e7' => 'pv-grub-hd00_1.02-x86_64', 'aki-805ea7e9' => 'pv-grub-hd0_1.02-i386', 'aki-825ea7eb' => 'pv-grub-hd0_1.02-x86_64', #RHEL kernel Amazon Kernel ID 'aki-36ed075f' => 'aki-rhel-i386', 'aki-08ed0761' => 'aki-rhel-x86_64' }, 'us-west-1' => {'aki-9da0f1d8' => 'pv-grub-hd00-V1.01-i386', 'aki-9fa0f1da' => 'pv-grub-hd00-V1.01-x86_64', 'aki-99a0f1dc' => 'pv-grub-hd0-V1.01-i386', 'aki-9ba0f1de' => 'pv-grub-hd0-V1.01-x86_64', 'aki-87396bc2' => 'pv-grub-hd00_1.02-i386', 'aki-81396bc4' => 'pv-grub-hd00_1.02-x86_64', 'aki-83396bc6' => 'pv-grub-hd0_1.02-i386', 'aki-8d396bc8' => 'pv-grub-hd0_1.02-x86_64', #RHEL kernel Amazon Kernel ID 'aki-772c7f32' => 'aki-rhel-i386', 'aki-712c7f34' => 'aki-rhel-x86_64' }, 'us-west-2' => {'aki-dee26fee' => 'pv-grub-hd00-V1.01-i386', 'aki-90e26fa0' => 'pv-grub-hd00-V1.01-x86_64', 'aki-dce26fec' => 'pv-grub-hd0-V1.01-i386', 'aki-ace26f9c' => 'pv-grub-hd0-V1.01-x86_64', 'aki-c0e26ff0' => 'pv-grub-hd00_1.02-i386', 'aki-94e26fa4' => 'pv-grub-hd00_1.02-x86_64', 'aki-c2e26ff2' => 'pv-grub-hd0_1.02-i386', 'aki-98e26fa8' => 'pv-grub-hd0_1.02-x86_64', #RHEL kernel Amazon Kernel ID '' => 'aki-rhel-i386', '' => 'aki-rhel-x86_64' }, 'eu-west-1' => {'aki-47eec433' => 'pv-grub-hd00-V1.01-i386', 'aki-41eec435' => 'pv-grub-hd00-V1.01-x86_64', 'aki-4deec439' => 'pv-grub-hd0-V1.01-i386', 'aki-4feec43b' => 'pv-grub-hd0-V1.01-x86_64', 'aki-8a6657fe' => 'pv-grub-hd00_1.02-i386', 'aki-60695814' => 'pv-grub-hd00_1.02-x86_64', 'aki-64695810' => 'pv-grub-hd0_1.02-i386', 'aki-62695816' => 'pv-grub-hd0_1.02-x86_64', #RHEL kernel Amazon Kernel ID 'aki-af0a3ddb' => 'aki-rhel-i386', 'aki-a90a3ddd' => 'aki-rhel-x86_64' }, 'ap-southeast-1' => {'aki-6fd5aa3d' => 'pv-grub-hd00-V1.01-i386', 'aki-6dd5aa3f' => 'pv-grub-hd00-V1.01-x86_64', 'aki-13d5aa41' => 'pv-grub-hd0-V1.01-i386', 'aki-11d5aa43' => 'pv-grub-hd0-V1.01-x86_64', 'aki-a0225af2' => 'pv-grub-hd00_1.02-i386', 'aki-a6225af4' => 'pv-grub-hd00_1.02-x86_64', 'aki-a4225af6' => 'pv-grub-hd0_1.02-i386', 'aki-aa225af8' => 'pv-grub-hd0_1.02-x86_64', #RHEL kernel Amazon Kernel ID 'aki-9c235ace' => 'aki-rhel-i386', 'aki-82235ad0' => 'aki-rhel-x86_64' }, 'ap-northeast-1' => {'aki-d209a2d3' => 'pv-grub-hd00-V1.01-i386', 'aki-d409a2d5' => 'pv-grub-hd00-V1.01-x86_64', 'aki-d609a2d7' => 'pv-grub-hd0-V1.01-i386', 'aki-d809a2d9' => 'pv-grub-hd0-V1.01-x86_64', 'aki-e85df7e9' => 'pv-grub-hd00_1.02-i386', 'aki-ea5df7eb' => 'pv-grub-hd00_1.02-x86_64', 'aki-ec5df7ed' => 'pv-grub-hd0_1.02-i386', 'aki-ee5df7ef' => 'pv-grub-hd0_1.02-x86_64', #RHEL kernel Amazon Kernel ID 'aki-66c06a67' => 'aki-rhel-i386', 'aki-68c06a69' => 'aki-rhel-x86_64' }, 'sa-east-1' => {'aki-803ce39d' => 'pv-grub-hd00-V1.01-i386', 'aki-d03ce3cd' => 'pv-grub-hd00-V1.01-x86_64', 'aki-863ce39b' => 'pv-grub-hd0-V1.01-i386', 'aki-d63ce3cb' => 'pv-grub-hd0-V1.01-x86_64', 'aki-bc3ce3a1' => 'pv-grub-hd00_1.02-i386', 'aki-cc3ce3d1' => 'pv-grub-hd00_1.02-x86_64', 'aki-823ce39f' => 'pv-grub-hd0_1.02-i386', 'aki-d23ce3cf' => 'pv-grub-hd0_1.02-x86_64', #RHEL kernel Amazon Kernel ID '' => 'aki-rhel-i386', '' => 'aki-rhel-x86_64' } } target_aki = '' source_region = get_aws_region_from_endpoint(source_endpoint) target_region = get_aws_region_from_endpoint(target_endpoint) ("mapping AKI '#{source_aki}' from #{source_region} region to #{target_region} region...") if map[source_region] == nil Exception.new("source region not supported") elsif map[target_region] == nil Exception.new("target region not supported") else if map[source_region][source_aki] == nil Exception.new("aki not found in source region") else pv_grub_info = map[source_region][source_aki] map[target_region].each() {|key, value| if pv_grub_info.eql?(value) @logger.debug "found AKI: #{key} for #{value}" target_aki = key break end } end end ("AKI mapped to #{target_aki}") return target_aki end |
#get_aws_region_from_endpoint(endpoint) ⇒ Object
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# File 'lib/help/state_transition_helper.rb', line 1146 def get_aws_region_from_endpoint(endpoint) region = "us-east-1" case endpoint when /us-east/ region = "us-east-1" when /us-west-2/ region = "us-west-2" when /us-west-1/ region = "us-west-1" when /eu-west/ region = "eu-west-1" when /ap-southeast/ region = "ap-southeast-1" when /ap-northeast/ region = "ap-northeast-1" when /sa-east-1/ region = "sa-east-1" else region = "us-east-1" end return region end |
#get_partition_fs_type(part) ⇒ Object
Get partition filesytem type
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# File 'lib/help/state_transition_helper.rb', line 751 def get_partition_fs_type(part) ("Retrieving '#{part}' partition filesystem type...") @logger.debug "get #{part} partition filesystem type" # get partition device and then its fs type part_fs_type = remote_handler().get_partition_fs_type(part) @logger.debug "Found '#{part_fs_type}' as filesystem type" if part_fs_type.nil? || part_fs_type.empty? raise Exception.new("Failed to retrieve filesystem type for '#{part}' partition") else ("'#{part}' partition contains an #{part_fs_type} filesystem") end return part_fs_type end |
#get_partition_fs_type_and_label(part) ⇒ Object
Get partition filesytem type and label
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# File 'lib/help/state_transition_helper.rb', line 766 def get_partition_fs_type_and_label(part) ("Retrieving '#{part}' partition filesystem type...") @logger.debug "get #{part} partition filesystem type" # get partition device and then its fs type part_fs_type = remote_handler().get_partition_fs_type(part) @logger.debug "Found '#{part_fs_type}' as filesystem type" if part_fs_type.nil? || part_fs_type.empty? raise Exception.new("Failed to retrieve filesystem type for '#{part}' partition") else ("'#{part}' partition contains an #{part_fs_type} filesystem") end part_device = remote_handler().get_partition_device(part) @logger.debug "Found '#{part_device}' as partition device" if part_device.nil? || part_device.empty? raise Exception.new("Failed to retrieve device for '#{part}' partition") else ("'#{part}' partitition on device '#{part_device}'") end part_label = remote_handler().get_device_label_ext(part_device, part_fs_type) @logger.debug "Found label '#{part_label}'" if part_label.nil? || part_label.empty? ("'#{part}' partition has no label specified") else ("'#{part}' partition label '#{part_label}' for device node '#{part_device}'") end return part_fs_type, part_label end |
#get_partition_label(part) ⇒ Object
Get partition label
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# File 'lib/help/state_transition_helper.rb', line 690 def get_partition_label(part) ("Retrieving '#{part}' partition label if any...") @logger.debug "get #{part} partition label" # get part device and then its label part_device = remote_handler().get_partition_device(part) @logger.debug "Found '#{part_device}' as partition device" label = remote_handler().get_device_label(part_device) @logger.debug "Found label '#{label}'" if label.nil? || label.empty? ("'#{part}' partition has no label specified") else ("'#{part}' partition label '#{label}' for device node '#{part_device}'") end return label end |
#get_root_device_name ⇒ Object
Get root partition
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# File 'lib/help/state_transition_helper.rb', line 664 def get_root_device_name() ("Retrieving '/' root device name...") @logger.debug "get root device name" root_device = remote_handler().get_root_device() @logger.debug "Found '#{root_device}' as root device" return root_device end |
#get_root_partition_fs_type ⇒ Object
Get root filesytem type
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# File 'lib/help/state_transition_helper.rb', line 707 def get_root_partition_fs_type() ("Retrieving '/' root partition filesystem type...") @logger.debug "get root partition filesystem type" # get root device and then its fs type root_fs_type = remote_handler().get_root_fs_type() @logger.debug "Found '#{root_fs_type}' as root filesystem type" if root_fs_type.nil? || root_fs_type.empty? raise Exception.new("Failed to retrieve filesystem type for '/' root partition") else ("'/' root partition contains an #{root_fs_type} filesystem") end return root_fs_type end |
#get_root_partition_fs_type_and_label ⇒ Object
Get root filesytem type and label
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# File 'lib/help/state_transition_helper.rb', line 722 def get_root_partition_fs_type_and_label() ("Retrieving '/' root partition filesystem type and label...") @logger.debug "get root partition filesystem type" # get root device and then its fs type root_fs_type = remote_handler().get_root_fs_type() @logger.debug "Found '#{root_fs_type}' as root filesystem type" if root_fs_type.nil? || root_fs_type.empty? raise Exception.new("Failed to retrieve filesystem type for '/' root partition") else ("'/' root partition contains an #{root_fs_type} filesystem") end root_device = remote_handler().get_root_device() @logger.debug "Found '#{root_device}' as root device" if root_device.nil? || root_device.empty? raise Exception.new("Failed to retrieve root device for '/' root partition") else ("'/' root partitition on root device '#{root_device}'") end root_label = remote_handler().get_device_label_ext(root_device, root_fs_type) @logger.debug "Found label '#{root_label}'" if root_label.nil? || root_label.empty? ("'/' root partition has no label specified") else ("'/' root partition label '#{root_label}' for root device node '#{root_device}'") end return root_fs_type, root_label end |
#get_root_partition_label ⇒ Object
Get root partition label
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# File 'lib/help/state_transition_helper.rb', line 673 def get_root_partition_label() ("Retrieving '/' root partition label if any...") @logger.debug "get root partition label" # get root device and then its label root_device = remote_handler().get_root_device() @logger.debug "Found '#{root_device}' as root device" label = remote_handler().get_device_label(root_device) @logger.debug "Found label '#{label}'" if label.nil? || label.empty? ("'/' root partition has no label specified") else ("'/' root partition label '#{label}' for root device node '#{root_device}'") end return label end |
#get_root_volume_id(instance_id) ⇒ Object
Retrieve the root volume ID of an instance
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# File 'lib/help/state_transition_helper.rb', line 795 def get_root_volume_id(instance_id) ("getting 'root volume ID' (volume ID attached as RootDeviceName) of '#{instance_id}' instance...") volume_id = nil res = ec2_handler().describe_instances(:instance_id => instance_id) root_device_name = res['reservationSet']['item'][0]['instancesSet']['item'][0]['rootDeviceName'] block_device_map = res['reservationSet']['item'][0]['instancesSet']['item'][0]['blockDeviceMapping']['item'] block_device_map.each(){|blk_dev| if blk_dev['deviceName'] == root_device_name volume_id = blk_dev['ebs']['volumeId'] ("found '#{volume_id}' attached as '#{root_device_name}' rootDeviceName") break end } return volume_id end |
#launch_instance(ami_id, key_name, security_group_name, ec2_handler = nil, type = nil, availability_zone = nil) ⇒ Object
Launch an instance based on an AMI ID Input Parameters:
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ami_id => ID of the AMI to be launched
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key_name => name of the key to access the instance
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security_group_name => name of the security group to be used
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type => type of instance to start
Returned information:
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instance_id => ID of the started instance
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dns_name => DNS name of the started instance
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availability_zone => Availability zone of the started instance
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kernel_id => EC2 Kernel ID of the started instance
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ramdisk_id => EC2 Ramdisk ID of the started instance
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architecture => architecture (e.g. 386i, 64x) of the started instance
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# File 'lib/help/state_transition_helper.rb', line 108 def launch_instance(ami_id, key_name, security_group_name, ec2_handler = nil, type = nil, availability_zone = nil) ec2_handler = ec2_handler() if ec2_handler == nil ("starting up instance to execute the script (AMI = #{ami_id}) ...") @logger.debug "start up AMI #{ami_id}" # find out the image architecture first image_props = ec2_handler.describe_images(:image_id => ami_id) architecture = image_props['imagesSet']['item'][0]['architecture'] instance_type = "m1.small" #instance_type = "t1.micro" if architecture != "i386" instance_type = "m1.large" end instance_type = type if type != nil arch_log_msg = "Architecture of image #{ami_id} is #{architecture}. Use instance_type #{instance_type}." @logger.info arch_log_msg (arch_log_msg) # now start it res = ec2_handler.run_instances(:image_id => ami_id, :security_group => security_group_name, :key_name => key_name, :instance_type => instance_type, :availability_zone => availability_zone ) instance_id = res['instancesSet']['item'][0]['instanceId'] @logger.info "started instance #{instance_id}" ("Started instance #{instance_id}. wait until it is ready...") #availability_zone , key_name/group_name started = false while started == false sleep(5) res = ec2_handler.describe_instances(:instance_id => instance_id) state = res['reservationSet']['item'][0]['instancesSet']['item'][0]['instanceState'] @logger.info "instance is in state #{state['name']} (#{state['code']})" if state['code'].to_i == 16 started = true ("instance is up and running") dns_name = res['reservationSet']['item'][0]['instancesSet']['item'][0]['dnsName'] availability_zone = res['reservationSet']['item'][0]['instancesSet']['item'][0]['placement']['availabilityZone'] kernel_id = res['reservationSet']['item'][0]['instancesSet']['item'][0]['kernelId'] ramdisk_id = res['reservationSet']['item'][0]['instancesSet']['item'][0]['ramdiskId'] architecture = res['reservationSet']['item'][0]['instancesSet']['item'][0]['architecture'] root_device_name = res['reservationSet']['item'][0]['instancesSet']['item'][0]['rootDeviceName'] elsif state['code'].to_i != 0 ("instance in state #{state['name']}") raise Exception.new('instance failed to start up') else ("instance still starting up...") end end return instance_id, dns_name, availability_zone, kernel_id, ramdisk_id, architecture, root_device_name end |
#local_decompress_and_dump_file_to_device(source_filename, target_device) ⇒ Object
decompress and dump a file using gunzip and dd
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# File 'lib/help/state_transition_helper.rb', line 897 def local_decompress_and_dump_file_to_device(source_filename, target_device) ("going to start decompressing and dumping file '#{source_filename}' to '#{target_device}' target device. This may take quite a time...") @logger.debug "start decompressing and dumping '#{source_filename}' to '#{target_device}'" start_time = Time.new.to_i if remote_handler().tools_installed?("dd") && remote_handler().tools_installed?("gunzip") @logger.debug "use dd and gzip command line" status = remote_handler().local_decompress_and_dump(source_filename, target_device) if status == false @logger.error "failed to decompress and dump file" raise Exception.new("failed to decompress and dump file") end else @logger.error "dd and/or gunzip tools not installed" raise Exception.new("dd and/or gunzip tools not installed") end end_time = Time.new.to_i @logger.info "decompress and dump filetook #{(end_time-start_time)}s" ("decompressing and dumping done (took #{end_time-start_time})s") end |
#local_dump_and_compress_device_to_file(source_device, target_filename) ⇒ Object
dump and compress a device using dd and gzip
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# File 'lib/help/state_transition_helper.rb', line 876 def local_dump_and_compress_device_to_file(source_device, target_filename) ("going to start dumping and compressing source device '#{source_device}' to '#{target_filename}' file. This may take quite a time...") @logger.debug "start dumping and compressing '#{source_device}' to '#{target_filename}'" start_time = Time.new.to_i if remote_handler().tools_installed?("dd") && remote_handler().tools_installed?("gzip") @logger.debug "use dd and gzip command line" status = remote_handler().local_dump_and_compress(source_device, target_filename) if status == false @logger.error "failed to dump and compress device" raise Exception.new("failed to dump and compress device") end else @logger.error "dd and/or gzip tools not installed" raise Exception.new("dd and/or gzip tools not installed") end end_time = Time.new.to_i @logger.info "dump and compress took #{(end_time-start_time)}s" ("dumping and compressing done (took #{end_time-start_time})s") end |
#mount_fs(mount_point, device) ⇒ Object
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# File 'lib/help/state_transition_helper.rb', line 587 def mount_fs(mount_point, device) ("going to mount #{device} on #{mount_point}...") @logger.debug "mount #{device} on #{mount_point}" if !remote_handler.file_exists?(mount_point) ("creating mount point #{mount_point}...") @logger.debug "creating mount point #{mount_point}" remote_handler().mkdir(mount_point) end #XXX: detect new kernel that have /dev/xvdX device node instead of /dev/sdX if device =~ /\/dev\/sd[a-z]/ if !remote_handler().file_exists?(device) ("'#{device}' device node not found, checking for new kernel support...") @logger.debug "'#{device}' device node not found, checking for new kernel support" new_device = device.gsub('sd', 'xvd') if remote_handler().file_exists?(new_device) ("'#{new_device}' device node found") @logger.debug "'#{new_device}' device node found" device = new_device end end #elsif device =~/\/dev\/xvd[a-z]/ end done = false timeout = 120 while timeout > 0 res = remote_handler().mount(device, mount_point) if remote_handler().drive_mounted?(mount_point) done = true timeout = 0 end sleep(5) timeout -= 5 end msg = "" if !done msg = "Failed to mount device '#{device}' to '#{mount_point}" @logger.error "#{msg}" raise Exception.new("device #{device} not mounted") else msg = "device #{device} successfully mounted" @logger.info "#{msg}" end ("#{msg}") end |
#mount_fs_old(mount_point, device) ⇒ Object
Create a file-system on a given machine (assumes to be connected already). Input Parameters:
-
mount_point => directory to be mounted on the device
-
device => device used for mounting
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# File 'lib/help/state_transition_helper.rb', line 564 def mount_fs_old(mount_point, device) ("going to mount #{device} on #{mount_point}...") @logger.debug "mount #{device} on #{mount_point}" if !remote_handler.file_exists?(mount_point) remote_handler().mkdir(mount_point) end remote_handler().mount(device, mount_point) trials = 3 mounted = false while trials > 0 sleep(5) #give mount some time if remote_handler().drive_mounted?(mount_point) mounted = true break end trials -= trials end if !mounted raise Exception.new("drive #{mount_point} not mounted") end ("mount successful") end |
#register_snapshot(snapshot_id, name, root_device_name, description, kernel_id, ramdisk_id, architecture) ⇒ Object
Registers a snapshot as EBS-booted AMI. Input Parameters:
-
snapshot_id => EC2 Snapshot ID used to be used
-
name => name of the AMI to be created
-
root_device_name => Root device name (e.g. /dev/sdj) to be used for AMI registration
-
description => description of the AMI to be created
-
kernel_id => EC2 Kernel ID to be used for AMI registration
-
ramdisk_id => EC2 Ramdisk ID to be used for AMI registration
-
architecture => architecture (e.g. 386i, 64x) to be used for AMI registration
Returns:
-
image_id => ID of the AMI created and registered
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# File 'lib/help/state_transition_helper.rb', line 500 def register_snapshot(snapshot_id, name, root_device_name, description, kernel_id, ramdisk_id, architecture) ("going to register snapshot #{snapshot_id}...") @logger.debug "register snapshot #{snapshot_id} as #{name} using AKI '#{kernel_id}' ARI '#{ramdisk_id}' and arch '#{architecture}'" res = ec2_handler().register_image_updated(:snapshot_id => snapshot_id, :kernel_id => kernel_id, :architecture => architecture, :root_device_name => root_device_name, :description => description, :name => name, :ramdisk_id => ramdisk_id ) @logger.debug "result of registration = #{res.inspect}" image_id = res['imageId'] @logger.info "resulting image_id = #{image_id}" ("snapshot #{snapshot_id} successfully registered as AMI #{image_id} ") return image_id end |
#remote_copy(user_name, keyname, source_dir, dest_machine, dest_user, dest_dir) ⇒ Object
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# File 'lib/help/state_transition_helper.rb', line 931 def remote_copy(user_name, keyname, source_dir, dest_machine, dest_user, dest_dir) ("going to remote copy all files from volume. This may take some time...") key_path_candidates = ["/#{user_name}/.ssh/", "/home/#{user_name}/.ssh/"] key_path_candidates.each() {|key_path| key_file = "#{key_path}#{keyname}.pem" if remote_handler().file_exists?(key_path) if remote_handler().tools_installed?("rsync") @logger.debug "use rsync command on #{key_file}" remote_handler().remote_rsync(key_file, source_dir, dest_machine, dest_user, dest_dir) else @logger.debug "use scp command #{key_file}" remote_handler().scp(key_file, source_dir, dest_machine, dest_user, dest_dir) end break end } ("remote copy operation done") end |
#remote_copy_old(user_name, keyname, source_dir, dest_machine, dest_dir) ⇒ Object
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# File 'lib/help/state_transition_helper.rb', line 856 def remote_copy_old(user_name, keyname, source_dir, dest_machine, dest_dir) ("going to remote copy all files from volume. This may take some time...") key_path_candidates = ["/#{user_name}/.ssh/", "/home/#{user_name}/.ssh/"] key_path_candidates.each() {|key_path| key_file = "#{key_path}#{keyname}.pem" if remote_handler().file_exists?(key_path) if remote_handler().tools_installed?("rsync") @logger.debug "use rsync command on #{key_file}" remote_handler().remote_rsync(key_file, source_dir, dest_machine, dest_dir) else @logger.debug "use scp command #{key_file}" remote_handler().scp(key_file, source_dir, dest_machine, dest_dir) end break end } ("remote copy operation done") end |
#remote_handler ⇒ Object
setting/retrieving handlers
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# File 'lib/help/state_transition_helper.rb', line 1171 def remote_handler() if @remote_handler == nil if @context[:remote_command_handler] == nil @context[:remote_command_handler] = RemoteCommandHandler.new else @remote_handler = @context[:remote_command_handler] end end @remote_handler end |
#remote_handler=(remote_handler) ⇒ Object
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# File 'lib/help/state_transition_helper.rb', line 1182 def remote_handler=(remote_handler) @remote_handler = remote_handler end |
#retrieve_instances ⇒ Object
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# File 'lib/help/state_transition_helper.rb', line 283 def retrieve_instances() @context[:script].("going to retrieve all instances...") inst = @context[:ec2_api_handler].describe_instances() n = 0 unless inst['reservationSet'] == nil n = inst['reservationSet']['item'].size end @context[:script].("found #{n} instances") @logger.info("found #{n} instances") @context[:ec2_instances] = inst end |
#retrieve_security_groups ⇒ Object
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# File 'lib/help/state_transition_helper.rb', line 271 def retrieve_security_groups() @context[:script].("going to retrieve security groups...") sgs = @context[:ec2_api_handler].describe_security_groups() n = 0 unless sgs['securityGroupInfo'] == nil n = sgs['securityGroupInfo']['item'].size end @context[:script].("found #{n} security groups") @logger.info("found #{n} security groups") @context[:security_groups] = sgs end |
#shut_down_instance(instance_id) ⇒ Object
Shuts down an instance. Input Parameters:
-
instance_id => ID of the instance to be shut down
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# File 'lib/help/state_transition_helper.rb', line 215 def shut_down_instance(instance_id) ("going to shut down the temporary instance #{instance_id}...") @logger.debug "shutdown instance #{instance_id}" res = ec2_handler().terminate_instances(:instance_id => instance_id) done = false while done == false sleep(5) res = ec2_handler().describe_instances(:instance_id => instance_id) state = res['reservationSet']['item'][0]['instancesSet']['item'][0]['instanceState'] @logger.debug "instance in state #{state['name']} (#{state['code']})" if state['code'].to_i == 48 done = true elsif state['code'].to_i != 32 raise Exception.new('instance failed to shut down') end end ("instance #{instance_id} is terminated") end |
#snapshot_accessible(snapshot_id) ⇒ Object
Is Snapshot accessible?
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# File 'lib/help/state_transition_helper.rb', line 470 def snapshot_accessible(snapshot_id) ("checking snapshot '#{snapshot_id}' accessibility...") @logger.info("checking snapshot '#{snapshot_id}' accessibility...") begin ec2_handler().describe_snapshots(:snapshot_id => snapshot_id) rescue Exception => e if e.to_str =~ /does not exist/ && e.to_str =~ /#{snapshot_id}/ ("'#{snapshot_id}' NOT accessible") @logger.info("'#{snapshot_id}' NOT accessible") return false else raise e end end ("'#{snapshot_id}' accessible") @logger.info("'#{snapshot_id}' accessible") return true end |
#start_instance(instance_id, timeout = 240) ⇒ Object
Start an instance Input Paramters:
-
instance_id => ID of the instance to start
-
timeout => a timeout for waiting instance to start to avoid infinite loop (default set to 4m)
Return Parameters (Array):
-
instance_id
-
public_dns_name
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# File 'lib/help/state_transition_helper.rb', line 166 def start_instance(instance_id, timeout = 240) dns_name = "" ("going to start instance '#{instance_id}'...") res = ec2_handler().describe_instances(:instance_id => instance_id) state = res['reservationSet']['item'][0]['instancesSet']['item'][0]['instanceState'] if state['code'].to_i == 16 dns_name = res['reservationSet']['item'][0]['instancesSet']['item'][0]['dnsName'] msg = "instance '#{instance_id}' already started" @logger.warn "#{msg}" ("#{msg}") done = true else @logger.debug "start instance #{instance_id}" ec2_handler().start_instances(:instance_id => instance_id) end while timeout > 0 && !done res = ec2_handler().describe_instances(:instance_id => instance_id) state = res['reservationSet']['item'][0]['instancesSet']['item'][0]['instanceState'] @logger.debug "instance in state '#{state['name']}' (#{state['code']})" if state['code'].to_i == 16 done = true timeout = 0 dns_name = res['reservationSet']['item'][0]['instancesSet']['item'][0]['dnsName'] elsif state['code'].to_i != 0 done = false timeout = 0 msg = "instance in state '#{state['name']}'" @logger.error "#{msg}" ("#{msg}") end sleep(5) timeout -= 5 end msg = "" if !done msg = "Failed to start instance '#{instance_id}" @logger.error "#{msg}" raise Exception.new("Unable to start instance '#{instance_id}'}") else msg = "'#{instance_id}' successfully started" @logger.info "#{msg}" end ("#{msg}") return instance_id, dns_name end |
#stop_instance(instance_id, timeout = 240) ⇒ Object
Stop an instance. Input Parameters:
-
instance_id => ID of the instance to be shut down
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# File 'lib/help/state_transition_helper.rb', line 237 def stop_instance(instance_id, timeout = 240) ("going to stop the temporary instance #{instance_id}...") @logger.debug "stop instance #{instance_id}" res = ec2_handler().stop_instances(:instance_id => instance_id) done = false while timeout > 0 && !done res = ec2_handler().describe_instances(:instance_id => instance_id) state = res['reservationSet']['item'][0]['instancesSet']['item'][0]['instanceState'] @logger.debug "instance in state '#{state['name']}' (#{state['code']})" if state['code'].to_i == 80 done = true timeout = 0 elsif state['code'].to_i != 64 done = false timeout = 0 msg = "instance in state '#{state['name']}'" @logger.error "#{msg}" ("#{msg}") end sleep(5) timeout -= 5 end msg = "" if !done msg = "Failed to stop instance '#{instance_id}" @logger.error "#{msg}" raise Exception.new("Unable to stop instance '#{instance_id}'}") else msg = "'#{instance_id}' successfully stopped" @logger.info "#{msg}" end ("#{msg}") end |
#unmount_fs(mount_point) ⇒ Object
Unmount a drive Input Parameters:
-
mount_point => directory to be unmounted
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# File 'lib/help/state_transition_helper.rb', line 636 def unmount_fs(mount_point) ("going to unmount #{mount_point}...") @logger.debug "unmount #{mount_point}" done = false timeout = 120 while timeout > 0 res = remote_handler().umount(mount_point) if !remote_handler().drive_mounted?(mount_point) done = true timeout = 0 end sleep(5) timeout -= 5 end msg = "" if !done msg = "Failed to umount '#{mount_point}'" @logger.error "#{msg}" raise Exception.new("#{mount_point} still mounted") else msg = "#{mount_point} successfully mounted" @logger.info "#{msg}" end ("#{msg}") end |
#upload_file(ip, user, key_data, file, target_file) ⇒ Object
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# File 'lib/help/state_transition_helper.rb', line 950 def upload_file(ip, user, key_data, file, target_file) ("going to upload #{file} to #{user}@#{ip}:#{target_file}") remote_handler().upload(ip, user, key_data, file, target_file) end |
#zip_volume(source_dir, zip_file_dest, zip_file_name) ⇒ Object
Zips all files on a mounted-directory into a file Input Parameters:
-
source_dir => where to copy from
-
zip_file_dest => path where the zip-file should be stored
# zip_file_name => name of the zip file (without .zip suffix)
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# File 'lib/help/state_transition_helper.rb', line 846 def zip_volume(source_dir, zip_file_dest, zip_file_name) ("going to zip the EBS volume") stderr = remote_handler().zip(source_dir, zip_file_dest+"/"+zip_file_name) if stderr.size > 0 @logger.info("zip operation generated error and might not be complete. output: #{stderr.join("\n")}") ("zip operation generated error and might not be complete. output: #{stderr.join("\n")}") end ("EBS volume successfully zipped") end |