Class: Scaltainer::ServiceTypeBase
- Inherits:
-
Object
- Object
- Scaltainer::ServiceTypeBase
show all
- Defined in:
- lib/scaltainer/service_types/base.rb
Instance Method Summary
collapse
Constructor Details
Returns a new instance of ServiceTypeBase.
3
4
5
|
# File 'lib/scaltainer/service_types/base.rb', line 3
def initialize(app_endpoint)
@app_endpoint = app_endpoint.sub('$HIREFIRE_TOKEN', ENV['HIREFIRE_TOKEN'] || '') if app_endpoint
end
|
Instance Method Details
#adjust_desired_replicas(desired_replicas, config) ⇒ Object
17
18
19
20
|
# File 'lib/scaltainer/service_types/base.rb', line 17
def adjust_desired_replicas(desired_replicas, config)
desired_replicas = [config["max"], desired_replicas].min if config["max"]
[config["min"], desired_replicas].max
end
|
#determine_desired_replicas(metric, service_config, current_replicas) ⇒ Object
12
13
14
15
|
# File 'lib/scaltainer/service_types/base.rb', line 12
def determine_desired_replicas(metric, service_config, current_replicas)
raise ConfigurationError.new 'No metric found for requested resource' unless metric
raise ConfigurationError.new 'No configuration found for requested resource' unless service_config
end
|
#get_metrics(services) ⇒ Object
7
8
9
10
|
# File 'lib/scaltainer/service_types/base.rb', line 7
def get_metrics(services)
services_count = services.keys.length rescue 0
raise Scaltainer::Warning.new "No resources found for #{self.class.name}" if services_count == 0
end
|
#to_s ⇒ Object
62
63
64
|
# File 'lib/scaltainer/service_types/base.rb', line 62
def to_s
"Base"
end
|
#yield_to_scale(replica_diff, config, state, metric, service_name, logger) ⇒ Object
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
# File 'lib/scaltainer/service_types/base.rb', line 22
def yield_to_scale(replica_diff, config, state, metric, service_name, logger)
if replica_diff > 0
state["upscale_sensitivity"] ||= 0
state["upscale_sensitivity"] += 1
state["downscale_sensitivity"] = 0
if state["upscale_sensitivity"] >= config["upscale_sensitivity"]
yield
state["upscale_sensitivity"] = 0
else
logger.debug "Scaling up of resource #{service_name} blocked by upscale_sensitivity at level " +
"#{state["upscale_sensitivity"]} while level #{config["upscale_sensitivity"]} is required"
end
elsif replica_diff < 0 if can_scale_down? metric, config
state["downscale_sensitivity"] ||= 0
state["downscale_sensitivity"] += 1
state["upscale_sensitivity"] = 0
if state["downscale_sensitivity"] >= config["downscale_sensitivity"]
yield
state["downscale_sensitivity"] = 0
else
logger.debug "Scaling down of resource #{service_name} blocked by downscale_sensitivity at level " +
"#{state["downscale_sensitivity"]} while level #{config["downscale_sensitivity"]} is required"
end
else
logger.debug "Scaling down of resource #{service_name} to #{metric} replicas blocked by a non-decrementable config"
end
else
state["upscale_sensitivity"] = 0
state["downscale_sensitivity"] = 0
logger.info "No need to scale resource #{service_name}"
end
end
|