docker-images/postgres
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Add new "docker-ensure-initdb.sh" script

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This mimics the behavior of `docker-entrypoint.sh` before it starts the PostgreSQL server.

It has three main goals/uses:

  1. (most importantly) as an example of how to use "docker-entrypoint.sh" to extend/reuse the initialization behavior

  2. ("docker-ensure-initdb.sh") as a Kubernetes "init container" to ensure the provided database directory is initialized; see also "startup probes" for an alternative solution
       (no-op if database is already initialized)

  3. ("docker-enforce-initdb.sh") as part of CI to ensure the database is fully initialized before use
       (error if database is already initialized)
This commit is contained in:
Tianon Gravi
2023-11-29 15:50:55 -08:00
parent d8c33605bb
commit c86568af4a
66 changed files with 1562 additions and 27 deletions
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docker-entrypoint.sh
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@ -225,6 +225,7 @@ docker_setup_env() {
: "${POSTGRES_HOST_AUTH_METHOD:=}"
declare -g DATABASE_ALREADY_EXISTS
: "${DATABASE_ALREADY_EXISTS:=}"
# look specifically for PG_VERSION, as it is expected in the DB dir
if [ -s "$PGDATA/PG_VERSION" ]; then
DATABASE_ALREADY_EXISTS='true'