Class: Pfab::Templates::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/pfab/templates/base.rb

Direct Known Subclasses

Cron, Job, LongRunningProcess

Instance Method Summary collapse

Constructor Details

#initialize(data) ⇒ Base

Returns a new instance of Base.



6
7
8
 
# File 'lib/pfab/templates/base.rb', line 6

def initialize(data)
  @data = data
end

Instance Method Details

#app_vars ⇒ Object 



14
15
16
 
# File 'lib/pfab/templates/base.rb', line 14

def app_vars
  @data["application_yaml"]["deployables"][@data["props"][:deployable]]
end

#application_type ⇒ Object

overridden in subtypes



60
61
62
 
# File 'lib/pfab/templates/base.rb', line 60

def application_type
  "base"
end

#container_ports ⇒ Object 



146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
 
# File 'lib/pfab/templates/base.rb', line 146

def container_ports
  ports = []
  if app_vars["port"]
    ports.append ({
      name: "main",
      containerPort: app_vars["port"]
    })
  end
  %w[additionalPorts containerPorts].each do |key|
    if get(key)
      get(key).each do |name, number|
        ports.append(
          {name: name, containerPort: number}
        )
      end
    end
  end

  return ports
end

#cpu(req_type) ⇒ Object 



34
35
36
37
38
 
# File 'lib/pfab/templates/base.rb', line 34

def cpu(req_type)
  default_cpu_string = @data["config"]["default_cpu_string"] || "50m/250m"
  (request, limit) = (get("cpu") || default_cpu_string).split("/")
  req_type == :limit ? limit : request
end

#deploy_id ⇒ Object 



64
65
66
 
# File 'lib/pfab/templates/base.rb', line 64

def deploy_id
  @data['deployed_name']
end

#deploy_unique_id ⇒ Object 



68
69
70
 
# File 'lib/pfab/templates/base.rb', line 68

def deploy_unique_id
  @data['sha'] + "-" + @data['application_yaml_hash'][0,8]
end

#env_from ⇒ Object 



72
73
74
75
76
77
78
79
 
# File 'lib/pfab/templates/base.rb', line 72

def env_from
  env_from = []
  env_from << @data.dig("application_yaml", :env_from)
  env_from << @data.dig("application_yaml", @data["env"], :env_from)
  env_from.flatten!
  env_from.compact!
  env_from.empty? ? nil : env_from
end

#env_vars ⇒ Object 



81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
 
# File 'lib/pfab/templates/base.rb', line 81

def env_vars
  env_vars = { "DEPLOYED_NAME" => { value: @data['deployed_name'] },
               "DEPLOY_ID" => { value: deploy_id }, # currently this is the same as deployed_name
               "DEPLOY_FAMILY" => { value: @data['application'] },
               "POD_ID" => { valueFrom: { fieldRef: { fieldPath: 'metadata.name' } } },
               "SPEC_NODENAME" => { valueFrom: { fieldRef: { fieldPath: 'spec.nodeName' } } },
               "DD_ENV" => { valueFrom: { fieldRef: { fieldPath: "metadata.labels['tags.datadoghq.com/env']" } } },
               "DD_SERVICE" => { valueFrom: { fieldRef: { fieldPath: "metadata.labels['tags.datadoghq.com/service']" } } },
               "DD_VERSION" => { valueFrom: { fieldRef: { fieldPath: "metadata.labels['tags.datadoghq.com/version']" } } }
  }

  # load defaults
  load_env_vars(env_vars, @data.dig("application_yaml", :environment))
  load_secrets(env_vars, @data.dig("application_yaml", :env_secrets))

  # load env overrides
  load_env_vars(env_vars, @data.dig("application_yaml", @data["env"], :environment))
  load_secrets(env_vars, @data.dig("application_yaml", @data["env"], :env_secrets))


  #load more env overrides first at app
  load_env_vars(env_vars, app_vars[:environment])
  load_secrets(env_vars, app_vars[:env_secrets])
  #  then app/environment
  load_env_vars(env_vars, app_vars.dig(@data["env"], :environment))
  load_secrets(env_vars, app_vars.dig(@data["env"], :env_secrets))


  env_vars.map do |k, v|
    { name: k }.merge(v)
  end
end

#get(key) ⇒ Object 



18
19
20
 
# File 'lib/pfab/templates/base.rb', line 18

def get(key)
  app_vars.dig(@data["env"], key) || app_vars[key]
end

#get_command ⇒ Object 



26
27
28
29
30
31
32
 
# File 'lib/pfab/templates/base.rb', line 26

def get_command()
  cmd = get("command")
  if cmd.kind_of?(Array)
    return cmd
  end
  return cmd.split(" ")
end

#get_namespace ⇒ Object 



22
23
24
 
# File 'lib/pfab/templates/base.rb', line 22

def get_namespace
  @data['namespace']
end

#image_name ⇒ Object 



10
11
12
 
# File 'lib/pfab/templates/base.rb', line 10

def image_name
  "#{@data['container_repository']}/#{@data['image_name']}:#{@data['sha']}"
end

#load_env_vars(env_vars, hash) ⇒ Object 



114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
 
# File 'lib/pfab/templates/base.rb', line 114

def load_env_vars(env_vars, hash)
  (hash || {}).each do |env_var_name, v|
    if v.to_s.start_with? "field/"
      (_, field_name) = v.split("/")
      env_vars[env_var_name] = { valueFrom: {
        fieldRef: { fieldPath: field_name }
      } }
    elsif v.to_s.start_with? "configmap/"
       (_, configmap_name, key_name) = v.split("/")
       env_vars[env_var_name] = { valueFrom: {
         configMapKeyRef: { name: configmap_name, key: key_name }
       } }
    else
      env_vars[env_var_name] = { value: v }
    end
  end
end

#load_secrets(env_vars, hash) ⇒ Object 



132
133
134
135
136
137
138
139
140
141
142
143
 
# File 'lib/pfab/templates/base.rb', line 132

def load_secrets(env_vars, hash)
  (hash || {}).each do |env_var_name, v|
    (ref, key) = v.split("/")
    env_vars[env_var_name] = {
      valueFrom: {
        secretKeyRef: {
          name: ref,
          key: key
        }
      } }
  end
end

#memory(req_type) ⇒ Object 



40
41
42
43
44
 
# File 'lib/pfab/templates/base.rb', line 40

def memory(req_type)
  default_memory_string = @data["config"]["default_memory_string"] || "256Mi/500Mi"
  (request, limit) = (get("memory") || default_memory_string).split("/")
  req_type == :limit ? limit : request
end

#resources ⇒ Object 



46
47
48
49
50
51
52
53
54
55
56
57
 
# File 'lib/pfab/templates/base.rb', line 46

def resources
  {
    requests: {
      cpu: cpu(:request),
      memory: memory(:request),
    },
    limits: {
      cpu: cpu(:limit),
      memory: memory(:limit),
    }
  }
end