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Feike Steenbergen e2aff13d3e Patronictl: Create commandline tool that can manage clusters.

For managing Patroni clusters, the Patroni api can be used. For many tasks, a command line interface for
this api would be a useful addition. This commit adds patroncli (The name is still under debate).
The command line interface needs access to the DCS; this is required for any operation. For some tasks it is required
to have access to the Patroni api.

A small summary of the additions to get the cli/ctl started:

* Updated Docker image to use 'true' as the archive_command, to ensure disk not filling up during failover
  testing.
* The cli currently can list members, failover a master and remove a given cluster from DCS.
* The cli can be configured with a command, for repeated access to the same DCS
* Added some simple tests for the cli, code coverage is very low

2015-10-26 14:57:59 +01:00

dev_patroni_cluster.sh

Change Docker registry

2015-10-22 09:30:12 +02:00

entrypoint.sh

Patronictl: Create commandline tool that can manage clusters.

2015-10-26 14:57:59 +01:00

README.md

Reflect the renaming of os-registry.stups.zalan.do to registry.opensource.zalan.do

2015-10-08 12:40:21 +02:00

README.md

Patroni Dockerfile

You can run Patroni in a docker container using this Dockerfile, or by using one of the Docker image at

https://registry.opensource.zalan.do/v1/repositories/acid/patroni/tags

This Dockerfile is meant in aiding development of Patroni and quick testing of features. It is not a production-worthy Dockerfile

Examples

Standalone Patroni

docker run -d registry.opensource.zalan.do/acid/patroni:1.0-SNAPSHOT

Multiple Patroni's communicating with a standalone etcd inside Docker

Basically what you would do would be:

Run 1 container which provides etcd
```
  docker run -d <IMAGE> --etcd-only
```
Run n containers running Patroni, passing the --etcd option to the docker run command
```
  docker run -d <IMAGE> --etcd=<IP FROM etcd CONTAINER:PORT>
```

To automate this you can run the following script:

dev_patroni_cluster.sh [OPTIONS]

Options:

    --image     IMAGE    The Docker image to use for the cluster
    --members   INT      The number of members for the cluster
    --name      NAME     The name of the new cluster

Example session:

$ ./dev_patroni_cluster.sh --image registry.opensource.zalan.do/acid/patroni:1.0-SNAPSHOT --members=2 --name=bravo
The etcd container is 6be871a11cb373406ca5ea1c6b39e1.0-SNAPSHOTfdde9fb1d6177212d6ad0c0d1bd9b563, ip=172.17.1.24
Started Patroni container 67e611f2eca7c40f9e6e0e24a4a8f2cba7e3e56d22a420e15ab9240a37a9d7a4, ip=172.17.1.25
Started Patroni container 47dd12ae635ab83b039f5889e250048b606ed5e48e3650b69e365e7e1d4acbcf, ip=172.17.1.26
$ docker ps
CONTAINER ID        IMAGE                                         COMMAND                CREATED             STATUS              PORTS                          NAMES
47dd12ae635a        registry.opensource.zalan.do/acid/patroni:1.0-SNAPSHOT   "/bin/bash /entrypoi   10 seconds ago      Up 8 seconds        4001/tcp, 5432/tcp, 2380/tcp   bravo_OR64g8bx
67e611f2eca7        registry.opensource.zalan.do/acid/patroni:1.0-SNAPSHOT   "/bin/bash /entrypoi   11 seconds ago      Up 10 seconds       2380/tcp, 4001/tcp, 5432/tcp   bravo_si9no8iz
6be871a11cb3        registry.opensource.zalan.do/acid/patroni:1.0-SNAPSHOT   "/bin/bash /entrypoi   12 seconds ago      Up 10 seconds       4001/tcp, 5432/tcp, 2380/tcp   bravo_etcd