coredotbin/docker-postgresql-multiple-databases
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Simple script improvement to add the capability of different user and password per database entry

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Signed-off-by: Helio Chissini de Castro <helio@kde.org>
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Helio Chissini de Castro 2021-12-15 21:29:27 +01:00
parent ac7f26d210
commit 6151b43cba
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2 changed files with 14 additions and 10 deletions
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9
README.md
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@ -18,8 +18,7 @@ mechanism.
### By mounting a volume ### By mounting a volume
Clone the repository, mount its directory as a volume into Clone the repository, mount its directory as a volume into
`/docker-entrypoint-initdb.d` and declare database names separated by commas in `/docker-entrypoint-initdb.d` and declare database names separated by commas and each entry with database, user and password separated by double colon in `POSTGRES_MULTIPLE_DATABASES` environment variable as follows
`POSTGRES_MULTIPLE_DATABASES` environment variable as follows
(`docker-compose` syntax): (`docker-compose` syntax):
myapp-postgresql: myapp-postgresql:
@ -27,9 +26,10 @@ Clone the repository, mount its directory as a volume into
volumes: volumes:
- ../docker-postgresql-multiple-databases:/docker-entrypoint-initdb.d - ../docker-postgresql-multiple-databases:/docker-entrypoint-initdb.d
environment: environment:
- POSTGRES_MULTIPLE_DATABASES=db1,db2 - POSTGRES_MULTIPLE_DATABASES=db1:user:pwd,db2:user:pwd
- POSTGRES_USER=myapp - POSTGRES_USER=myapp
- POSTGRES_PASSWORD= - POSTGRES_PASSWORD=
- POSTGRES_DB=db
### By building a custom image ### By building a custom image
@ -48,10 +48,11 @@ to the container:
- POSTGRES_MULTIPLE_DATABASES=db1,db2 - POSTGRES_MULTIPLE_DATABASES=db1,db2
- POSTGRES_USER=myapp - POSTGRES_USER=myapp
- POSTGRES_PASSWORD= - POSTGRES_PASSWORD=
- POSTGRES_DB=db
### Non-standard database names ### Non-standard database names
If you need to use non-standard database names (hyphens, uppercase letters etc), quote them in `POSTGRES_MULTIPLE_DATABASES`: If you need to use non-standard database names (hyphens, uppercase letters etc), quote them in `POSTGRES_MULTIPLE_DATABASES`:
environment: environment:
- POSTGRES_MULTIPLE_DATABASES="test-db-1","test-db-2" - POSTGRES_MULTIPLE_DATABASES="test-db-1:user:pwd","test-db-2:user:pwd"

15
create-multiple-postgresql-databases.sh
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@ -4,12 +4,15 @@ set -e
set -u set -u
function create_user_and_database() { function create_user_and_database() {
local database=$1 local dbinfo=$1
echo " Creating user and database '$database'" IFS=":" read -r database user password <<< "$dbinfo"
psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" <<-EOSQL
CREATE USER $database; echo "Creating database '$database' with user '$user' and password '$password'"
CREATE DATABASE $database; psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" <<-EOSQL
GRANT ALL PRIVILEGES ON DATABASE $database TO $database; CREATE USER $user;
ALTER USER $user WITH ENCRYPTED PASSWORD '$password';
CREATE DATABASE $database;
GRANT ALL PRIVILEGES ON DATABASE $database TO $user;
EOSQL EOSQL
} }