Allow to pass custom args to the createdb command

Author: timaschew

README.md

@@ -66,6 +66,7 @@ dokku postgres:create <service> [--create-flags...]
 flags:
 
 - `-c|--config-options "--args --go=here"`: extra arguments to pass to the container create command (default: `None`)
+- `-c|--createdb-options "--locale=C"`: extra arguments to pass to the `createdb` command inside the container (default: `-E=UTF8`)
 - `-C|--custom-env "USER=alpha;HOST=beta"`: semi-colon delimited environment variables to start the service with
 - `-i|--image IMAGE`: the image name to start the service with
 - `-I|--image-version IMAGE_VERSION`: the image version to start the service with
@@ -399,6 +400,7 @@ dokku postgres:upgrade <service> [--upgrade-flags...]
 flags:
 
 - `-c|--config-options "--args --go=here"`: extra arguments to pass to the container create command (default: `None`)
+- `-c|--createdb-options "--locale=C"`: extra arguments to pass to the `createdb` command inside the container (default: `-E=UTF8`)
 - `-C|--custom-env "USER=alpha;HOST=beta"`: semi-colon delimited environment variables to start the service with
 - `-i|--image IMAGE`: the image name to start the service with
 - `-I|--image-version IMAGE_VERSION`: the image version to start the service with
@@ -469,6 +471,7 @@ dokku postgres:clone <service> <new-service> [--clone-flags...]
 flags:
 
 - `-c|--config-options "--args --go=here"`: extra arguments to pass to the container create command (default: `None`)
+- `-c|--createdb-options "--locale=C"`: extra arguments to pass to the `createdb` command inside the container (default: `-E=UTF8`)
 - `-C|--custom-env "USER=alpha;HOST=beta"`: semi-colon delimited environment variables to start the service with
 - `-i|--image IMAGE`: the image name to start the service with
 - `-I|--image-version IMAGE_VERSION`: the image version to start the service with

bin/generate

@@ -302,6 +302,8 @@ def command_help(command, service, variable, alias, image, scheme, ports, option
     for flag in data["flags"]:
         if "--config-options" in flag and options != "":
             flag = f"{flag} (default: `{options}`)"
+        if "--createdb-options" in flag and options != "":
+            flag = f"{flag} (default: `-E=UTF8`)"
         content.append(f"- {flag}")
 
     if len(data["examples"]) > 0:

common-functions

@@ -265,6 +265,10 @@ service_commit_config() {
     echo "" >"$SERVICE_ROOT/CONFIG_OPTIONS"
   fi
 
+  if [[ -n "$CREATEDB_OPTIONS" ]]; then
+    echo "$CREATEDB_OPTIONS" >"$SERVICE_ROOT/CREATEDB_OPTIONS"
+  fi
+
   if [[ -n "$SERVICE_MEMORY" ]]; then
     echo "$SERVICE_MEMORY" >"$SERVICE_ROOT/SERVICE_MEMORY"
   fi
@@ -452,6 +456,7 @@ service_info() {
   local flag_map=(
     "--config-dir: ${SERVICE_ROOT}/${PLUGIN_CONFIG_SUFFIX}"
     "--config-options: $(cat "$SERVICE_ROOT/CONFIG_OPTIONS")"
+    "--createdb-options: ${CREATEDB_OPTIONS}"
     "--data-dir: ${SERVICE_ROOT}/data"
     "--dsn: ${SERVICE_URL}"
     "--exposed-ports: $(service_exposed_ports "$SERVICE")"
@@ -606,6 +611,7 @@ service_parse_args() {
     case "$arg" in
       "--alias") set -- "$@" "-a" ;;
       "--config-options") set -- "$@" "-c" ;;
+      "--createdb-options") set -- "$@" "-o" ;;
       "--custom-env") set -- "$@" "-C" ;;
       "--database") set -- "$@" "-d" ;;
       "--image-version") set -- "$@" "-I" ;;
@@ -622,7 +628,7 @@ service_parse_args() {
   done
 
   OPTIND=1
-  while getopts "a:c:C:d:i:I:m:p:q:R:r:s:u:" opt; do
+  while getopts "a:c:o:C:d:i:I:m:p:q:R:r:s:u:" opt; do
     case "$opt" in
       a)
         SERVICE_ALIAS="${OPTARG^^}"
@@ -631,6 +637,9 @@ service_parse_args() {
       c)
         export PLUGIN_CONFIG_OPTIONS=$OPTARG
         ;;
+      o)
+        export CREATEDB_OPTIONS=$OPTARG
+        ;;
       C)
         export SERVICE_CUSTOM_ENV=$OPTARG
         ;;

functions

@@ -73,6 +73,10 @@ service_create_container() {
     export CONFIG_OPTIONS="$(cat "$SERVICE_ROOT/CONFIG_OPTIONS")"
   fi
 
+  if [[ -f "$SERVICE_ROOT/CREATEDB_OPTIONS" ]]; then
+    export CREATEDB_OPTIONS="$(cat "$SERVICE_ROOT/CREATEDB_OPTIONS")"
+  fi
+
   [[ -f "$SERVICE_ROOT/SERVICE_MEMORY" ]] && SERVICE_MEMORY="$(cat "$SERVICE_ROOT/SERVICE_MEMORY")"
   if [[ -n "$SERVICE_MEMORY" ]]; then
     MEMORY_LIMIT="--memory=${SERVICE_MEMORY}m"
@@ -94,7 +98,7 @@ service_create_container() {
   docker run --rm --link "$SERVICE_NAME:$PLUGIN_COMMAND_PREFIX" "$PLUGIN_WAIT_IMAGE" -p "$PLUGIN_DATASTORE_WAIT_PORT" >/dev/null
 
   dokku_log_verbose_quiet "Creating container database"
-  docker exec "$SERVICE_NAME" su - postgres -c "createdb -E utf8 $DATABASE_NAME" 2>/dev/null || dokku_log_verbose_quiet 'Already exists'
+  docker exec "$SERVICE_NAME" su - postgres -c "createdb -E=UTF8 $CREATEDB_OPTIONS $DATABASE_NAME" 2>/dev/null || dokku_log_verbose_quiet 'Already exists'
 
   dokku_log_verbose_quiet "Securing connection to database"
   service_stop "$SERVICE" >/dev/null

subcommands/clone

@@ -11,6 +11,7 @@ service-clone-cmd() {
   #A service, service to run command against
   #A new-service, name of new service
   #F -c|--config-options "--args --go=here", extra arguments to pass to the container create command
+  #F -c|--createdb-options "--locale=C", extra arguments to pass to the `createdb` command inside the container
   #F -C|--custom-env "USER=alpha;HOST=beta", semi-colon delimited environment variables to start the service with
   #F -i|--image IMAGE, the image name to start the service with
   #F -I|--image-version IMAGE_VERSION, the image version to start the service with

subcommands/create

@@ -19,6 +19,7 @@ service-create-cmd() {
   #E dokku $PLUGIN_COMMAND_PREFIX:create lollipop
   #A service, service to run command against
   #F -c|--config-options "--args --go=here", extra arguments to pass to the container create command
+  #F -c|--createdb-options "--locale=C", extra arguments to pass to the `createdb` command inside the container
   #F -C|--custom-env "USER=alpha;HOST=beta", semi-colon delimited environment variables to start the service with
   #F -i|--image IMAGE, the image name to start the service with
   #F -I|--image-version IMAGE_VERSION, the image version to start the service with

subcommands/upgrade

@@ -11,6 +11,7 @@ service-upgrade-cmd() {
   #E dokku $PLUGIN_COMMAND_PREFIX:upgrade lollipop
   #A service, service to run command against
   #F -c|--config-options "--args --go=here", extra arguments to pass to the container create command
+  #F -c|--createdb-options "--locale=C", extra arguments to pass to the `createdb` command inside the container
   #F -C|--custom-env "USER=alpha;HOST=beta", semi-colon delimited environment variables to start the service with
   #F -i|--image IMAGE, the image name to start the service with
   #F -I|--image-version IMAGE_VERSION, the image version to start the service with

tests/service_info.bats

@@ -41,6 +41,9 @@ teardown() {
   run dokku "$PLUGIN_COMMAND_PREFIX:info" l --config-dir
   assert_success
 
+  run dokku "$PLUGIN_COMMAND_PREFIX:info" l --createdb-options
+  assert_success
+
   run dokku "$PLUGIN_COMMAND_PREFIX:info" l --data-dir
   assert_success