10491-dxox: remove docker volumes on run-local.sh and update postgres…

… restore documentation for manual steps

docs/postgres/restore.md

@@ -1,9 +1,58 @@
 # Postgres - Restore Database
 
-## Database goes offline (Fire drill)
+## Database goes offline / Lost data (Fire drill)
 
 Ensure snapshot exists for restore (aws console, rds -> snapshots).
 
+### Manual Restore Process
+
+- In AWS, restore from desired snapshot to restore instance.
+
+- Source to your target env
+
+- Using the script below
+`scripts/postgres/connect.sh`
+
+- Temporarily modify the line
+`PGPASSWORD="$DB_TOKEN" psql -h "$DB_HOST" -U "$DB_USER" -d "$DB_NAME"`
+
+To restore the database:
+```
+PGPASSWORD="$DB_TOKEN" pg_restore \
+  --host="$DB_HOST" \
+  --username="$DB_USER" \
+  --dbname="$DB_NAME" \
+  --port="$DB_PORT" \
+  --format=c \
+  --verbose \
+  --clean \
+  --no-privileges \
+  --no-owner \
+  --table=dw_case \ # optional if doing per table
+  --jobs=3 \
+  "backup.sql"
+```
+
+To backup the database:
+```
+PGPASSWORD="$DB_TOKEN" pg_dump \ # change to restore instance password
+  --host="$DB_HOST" \ # change to restore instance host
+  --username="$DB_USER" \
+  --port="$DB_PORT" \
+  --dbname="$DB_NAME" \
+  --file="backup.sql" \
+  --format=c \
+  --no-privileges \
+  --no-owner \
+  --verbose
+```
+
+- Run the script for the backup and restore operation (separately one at a time).
+
+- Re-add indexes using tables plus by going to each table on the restore instance under the structure tab copy and paste to target instance (writer).
+
+- Delete the restore instance and regional cluster (in this order).
+
 ### Terraform Process
 
 #### Prepare for deletion

run-local.sh

@@ -12,7 +12,7 @@ fi
 
 if [[ -z "$CI" ]]; then
   echo "Stopping postgres in case it's already running"
-  $DOCKER_COMPOSE -f web-api/src/persistence/postgres/docker-compose.yml down || true
+  $DOCKER_COMPOSE -f web-api/src/persistence/postgres/docker-compose.yml down --volumes || true
 
   echo "Starting postgres"
   $DOCKER_COMPOSE -f web-api/src/persistence/postgres/docker-compose.yml up -d || { echo "Failed to start Postgres containers"; exit 1; }