chore: allow custom container name for Postgres backups; misc. cleanu…

…p of backup scripts

support/containers/volumes/backups/postgres/backup-create-inside-container

@@ -20,5 +20,5 @@ cd /var/lib/postgresql/backups/ || exit 1
 # make backup
 pg_dump -h localhost -p 5432 -U "$POSTGRES_USER" -F c -b -v -f "phoenix-todo-list--pg-dump-$(date +'%Y-%m-%d-%H-%M-%S').dump" "$POSTGRES_DB"
 
-# remove all local backups older than 2 days
-find *.dump -type f -mtime +7 | xargs rm -f
+# # remove all local backups older than 7 days
+# find *.dump -type f -mtime +7 | xargs rm -f

support/containers/volumes/backups/postgres/backup-restore-inside-container

@@ -1,11 +1,12 @@
 #!/bin/sh
 
 show_help() {
-  echo "This script creates a pg_dump backup. It must be run inside the container.
+  echo "This script restores a pg_dump backup. It must be run inside the container.
 
-The first positional argument must be the filename of the backup you want to restore.
-  - DO NOT pass in the full path. Just the filename.
-    - e.g. 'pg-dump-2022-11-01-08-57-30.dump'"
+The first positional argument must be the filename of the backup you want to restore:
+  - The file must be located in the same directory as this script.
+  - DO NOT pass in the full path to the file. Just the filename.
+    - e.g. 'phoenix-todo-list--pg-dump-2022-11-01-08-57-30.dump'"
 }
 
 if [ "$1" = "--help" ]; then

support/scripts/backups/postgres/backup-create-outside-container

@@ -1,10 +1,16 @@
-#!/bin/bash
+#!/bin/sh
+
+# shellcheck disable=SC2153
 
 show_help() {
   echo "This script creates a pg_dump backup. It must be run outside the container.
 
 The backup file will be created in the same directory as this script. It will be created with a timestamp in the filename.
-  - e.g. 'postgres--pg-dump-2022-11-05-06-23-37.dump'
+  - e.g. 'phoenix-todo-list--pg-dump-2022-11-05-06-23-37.dump'
+
+This script accepts the following environment variable(s):
+  - POSTGRES_CONTAINER_NAME: The name of the Postgres container to be backed up
+    - Default: 'phoenix-todo-list_postgres'
 
 To use Podman instead of Docker, pass '--podman' as the last positional argument."
 }
@@ -14,12 +20,20 @@ if [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
   exit
 fi
 
+# configure postgres container name
+if [ "$POSTGRES_CONTAINER_NAME" != "" ]; then
+  postgres_container_name="$POSTGRES_CONTAINER_NAME"
+else
+  postgres_container_name="phoenix-todo-list-postgres-1"
+fi
+
+# configure container manager
 if [ "$1" = "--podman" ]; then
-  container_program=podman
+  container_manager=podman
 else
-  container_program=docker
+  container_manager=docker
 fi
 
 echo "Creating backup in Postgres container volume directory '/var/lib/postgresql/backups/'..."
 
-$container_program exec -it postgres /var/lib/postgresql/backups/backup-create-inside-container
+$container_manager exec -it "$postgres_container_name" /var/lib/postgresql/backups/backup-create-inside-container

support/scripts/backups/postgres/backup-restore-outside-container

@@ -1,11 +1,17 @@
 #!/bin/sh
 
+# shellcheck disable=SC2153
+
 show_help() {
   echo "This script restores a pg_dump backup. It must be run outside the container.
 
-The first positional argument must be the filename of the backup you want to restore.
+This script accepts the following environment variable(s):
+  - POSTGRES_CONTAINER_NAME: The name of the Postgres container to be restored
+    - Default: 'phoenix-todo-list-postgres-1'
+
+The first positional argument must be the filename of the backup you want to restore. The file must be located in the postgres backup
   - DO NOT pass in the full path. Just the filename.
-    - e.g. 'pg-dump-2022-11-01-08-57-30.dump'
+    - e.g. 'phoenix-todo-list--pg-dump-2022-11-05-06-23-37.dump'
 
 To use Podman instead of Docker, pass '--podman' as the last positional argument."
 }
@@ -18,10 +24,18 @@ elif [ "$1" = "" ]; then
   exit 2
 fi
 
+# configure postgres container name
+if [ "$POSTGRES_CONTAINER_NAME" != "" ]; then
+  postgres_container_name="$POSTGRES_CONTAINER_NAME"
+else
+  postgres_container_name="phoenix-todo-list-postgres-1"
+fi
+
+# configure container manager
 if [ "$1" = "--podman" ]; then
-  container_program=podman
+  container_manager=podman
 else
-  container_program=docker
+  container_manager=docker
 fi
 
-$container_program exec -it postgres /var/lib/postgresql/backups/backup-restore-inside-container "$1"
+$container_manager exec -it "$postgres_container_name" /var/lib/postgresql/backups/backup-restore-inside-container "$1"

support/scripts/backups/postgres/backups-list

@@ -1,18 +1,27 @@
-#!/bin/bash
+#!/bin/sh
 
 show_help() {
-  echo "Lists available backups inside the Postgres container directory '/var/lib/postgresql/backups/'."
+  echo "Lists available backups inside the Postgres container directory '/var/lib/postgresql/backups/'.
+
+This script accepts the following environment variable(s):
+  - POSTGRES_VOLUME_NAME: The name of the Postgres volume to be restored
+    - Default: 'phoenix-todo-list_postgres'
+
+This script accepts the following positional arguments:
+  --podman - When passed as the last positional argument, use Podman instead of Docker"
 }
 
 if [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
   show_help
   exit
-elif [ "$1" = "--docker" ]; then
-  container_program=docker
+fi
+
+if [ "$1" = "--podman" ]; then
+  container_manager=podman
 else
-  container_program=podman
+  container_manager=docker
 fi
 
 printf "Listing available backups in Postgres container volume directory '/var/lib/postgresql/backups/'...\n\n"
 
-$container_program exec -it postgres sh -c 'cd /var/lib/postgresql/backups/ && ls *.dump'
+$container_manager exec -it phoenix-todo-list_postgres sh -c 'cd /var/lib/postgresql/backups/ && ls *.dump'