Add support for master/slave mode #373
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This is an excellent support to have and works perfectly out of the box. |
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👍 It would be great to have this |
Member
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While the idea seems good, I'm not entirely sold on the complexity this adds to the official image, and think this use case would be better served by a derivative image (since it would only be a new entrypoint, and as such would be pretty easy to keep in sync with the official image given automated builds and repository links). |
This patch adds support for simple unintrusive master/slave setup.
It makes no changes for the single-node use-case, but adds two new environment variables: `POSTGRES_NUM_SLAVES` and `POSTGRES_MASTER_HOST`.
These enables the following simple scenario:
```
version: '3.1'
services:
pgmaster:
image: postgres
environment:
POSTGRES_NUM_SLAVES: 1
pgslave:
image: postgres
depends_on:
- pgmaster
restart: always
environment:
POSTGRES_MASTER_HOST: pgmaster
```
refs docker-library#55, docker-library#88, docker-library#104
Member
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Closing old issue. |
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This patch adds support for simple unintrusive master/slave setup.
It makes no changes for the single-node use-case, but adds two new environment variables:
POSTGRES_NUM_SLAVESandPOSTGRES_MASTER_HOST.These enables the following simple scenario (as a docker-compose example):
refs #55, #88, #104