docker_toolkit
Helper tools for work with docker and consul
Scripts
Some useful scripts to run inside or outside container
waiter.rb
waiter.rb allows to wait many conditions:
- tcp port opening
- PostgreSQL database creation
- PostgreSQL table creation
- file creation
- healthy Consul service
Usage: waiter.rb [options] -- exec
--tcp host:port Wait for tcp accepts on host:port
--db dbname Wait for PG database exists. Using --tcp to conenct PG
--tb tablename Wait for PG table exists. Using --tcp to conenct PG
-f, --file filename Wait for file exists.
--consul-addr addr=http://localhost:8500
HTTP addres to connect to consul
--consul Wait for local consul agent to be ready
--consul-service service Wait for service appear in consul
--consul-service-count count Wait for this count services appear in consul
--consul-tag tag User tag to filter services in consul
--user user username
--pass pass password
-t, --timeout secs=15 Total timeout
-i, --interval secs=2 Interval between attempts
-q, --quiet Do not output any status messages
consul.rb
Helper to use Consul in 12Factor application. Inspired by https://github.com/hashicorp/envconsul:
- export Consul key/value as environment variables
- references in Consul key/value store
- read config file and store values in Consul
- read files and store it in Consul key/value store
Usage: consul.rb [options] -- exec
--consul url Set up a custom Consul URL
--token token Connect into consul with custom access token (ACL)
--init [service] Initialize Consul services from config
--config file Read service configulation from file
--upload Upload files to variables
--show [service] Show service configulation from Consul
--override override existed keys
-d, --dereference dereference consul values in form of "consul://key/subkey"
--env prefix export KV values from prefix as env varaibles
--export add export to --env output
--pristine not include the parent processes' environment when exec child process
--put path:value put value to path
--get path get value from
Example config.yml:
.dbconfig: &dbconfig
DATABASE_HOST:
value: db
DATABASE_NAME:
value: dbname
srv1: &srv1
<<: [*dbconfig]
LOG_LEVEL:
value: debug
CA_CERT:
file: /tmp/ca/cacert.pem
CLIENT_CERT:
value: consul://services/ca/private/cert.pem
CLIENT_KEY:
value: consul://services/ca/private/key.pem
srv2:
<<: *srv1
CA_CERT:
value: consul://services/env/srv1/ca_certmerger.rb
Merge docker-compose file of any version. Allow inheritance and extending services.
COMPOSE_FILE=file1.yml:file2.yml merger.rb > /tmp/result.yml