Implement docker contexts

[aiordache]

Implement a simple docker-compatible context management.

Usage examples:

• Get context

import json
from docker.context import ContextAPI

ctx = ContextAPI.get_context()
print(json.dumps(ctx.Metadata, indent = 2))

Output

{
  "Name": "default",
  "Metadata": {
    "StackOrchestrator": "swarm"
  },
  "Endpoints": {
    "docker": {
      "Host": "unix:///var/run/docker.sock",
      "SkipTLSVerify": false
    }
  }
}

• Create context

ctx = ContextAPI.create_context(name='test')
print(ctx.Name)

Output

test

• Inspect context

inspect = ContextAPI.inspect_context('test')
print(json.dumps(inspect, indent = 2))

Output

{
  "Name": "test",
  "Metadata": {
    "StackOrchestrator": "swarm"
  },
  "Endpoints": {
    "docker": {
      "Host": "unix:///var/run/docker.sock",
      "SkipTLSVerify": false
    }
  },
  "TLSMaterial": {},
  "Storage": {
    "MetadataPath": "~/.docker/contexts/meta/9f86d081884c7d659a2f2cd15d6c15b0f00a08",
    "TLSPath": "~/.docker/contexts/tls/9f86d081884c7d659a2f2cd15d6c15b0f00a08/"
  }
}

• List contexts

for ctx in ContextAPI.contexts():
    print(ctx.Name)

Output

default
test

Signed-off-by: Anca Iordache anca.iordache@docker.com