Lets institute some operations around here

A directory for ops scripts, plus a script to backup the posgres
database that holds up asteroid.radio.

docker/operations/db_backup.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+## Backup the postgresql instance running in our local
+## asteroid-postgres docker container
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+# Source the runtime environment for asteroid.radio. creds, paths &c
+
+if [[ -f ${HOME}/SourceCode/lisp/asteroid/docker/environment.sh ]]; then
+    . ${HOME}/SourceCode/lisp/asteroid/docker/environment.sh
+fi
+
+BACKUP_DIR=${SCRIPT_DIR}/db_backups
+mkdir -p "$BACKUP_DIR"
+
+docker exec asteroid-postgres sh -c 'pg_dump $POSTGRES_DB -U $POSTGRES_USER -F p' | xz --compress -c > ${BACKUP_DIR}/db_$(date +%Y-%m-%d-%H.%M.%S)_backup.sql.xz
+
+