docker-postgis/scenario_tests/streaming_replication/docker-compose-gs.yml

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YAML

version: '3.9'
volumes:
pg-master-data-dir:
pg-node-data-dir:
services:
pg-master:
image: 'kartoza/postgis:${TAG:-manual-build}'
restart: 'always'
# You can optionally mount to volume, to play with the persistence and
# observe how the node will behave after restarts.
volumes:
- pg-master-data-dir:/var/lib/postgresql
- ./tests:/tests
- ../utils:/lib/utils
environment:
# ALLOW_IP_RANGE option is used to specify additionals allowed domains
# in pg_hba.
# This range should allow nodes to connect to master
ALLOW_IP_RANGE: '0.0.0.0/0'
# We can specify optional credentials
POSTGRES_PASS: 'docker'
REPLICATION_USER: 'replicator'
REPLICATION_PASS: 'replicator'
REPLICATION: 'true'
RUN_AS_ROOT: false
# Setup master replication variables
#PG_MAX_WAL_SENDERS: 8
#PG_WAL_KEEP_SEGMENTS: 100
# You can expose the port to observe it in your local machine
ports:
- "7777:5432"
healthcheck:
interval: 60s
timeout: 30s
retries: 3
test: "pg_isready"
pg-node:
image: 'kartoza/postgis:${TAG:-manual-build}'
restart: 'always'
# You can optionally mount to volume, but we're not able to scale it
# in that case.
# The node will always destroy its database and copy from master at
# runtime
volumes:
- pg-node-data-dir:/var/lib/postgresql
- ./tests:/tests
- ../utils:/lib/utils
environment:
# ALLOW_IP_RANGE option is used to specify additionals allowed domains
# in pg_hba.
# Not really needed in nodes for the replication, but optionally can
# be put when nodes are needed to be a failover server when master
# is down. The IP Range are generally needed if other services wants to
# connect to this node
ALLOW_IP_RANGE: '0.0.0.0/0'
# REPLICATE_FROM options accepts domain-name or IP address
# with this in mind, you can also put docker service name, because it
# will be resolved as host name.
POSTGRES_PASS: 'docker'
REPLICATE_FROM: 'pg-master'
REPLICATION: 'true'
RUN_AS_ROOT: false
# REPLICATE_PORT will default to 5432 if not specified.
# REPLICATE_PORT: '5432'
# In the case where you need to replicate from outside service,
# you can put the server address and port here, as long as the target
# where configured as master, and replicable.
# REPLICATE_FROM: '192.168.1.8'
# REPLICATE_PORT: '7777'
# DESTROY_DATABASE_ON_RESTART will default to True if not specified.
# If specified other than True, it will prevent node from destroying
# database on restart
DESTROY_DATABASE_ON_RESTART: 'True'
# PROMOTE_MASTER Default empty.
# If specified with any value, then it will convert current node into
# a writable state. Useful if master is down and the current node needs
# to be promoted until manual recovery.
# PROMOTE_MASTER: 'True'
# For now we don't support different credentials for replication
# so we use the same credentials as master's superuser, or anything that
# have replication role.
REPLICATION_USER: 'replicator'
REPLICATION_PASS: 'replicator'
depends_on:
pg-master:
condition: service_healthy
# You can expose the port to observe it in your local machine
# For this sample, it was disabled by default to allow scaling test
ports:
- "7776:5432"
healthcheck:
interval: 60s
timeout: 30s
retries: 3
test: "pg_isready"