Add a new backup script

This commit adds a backup script to backup all instances regularly.
Fixes #11.

distillery/backup.sh

@@ -0,0 +1,62 @@
+#!/bin/bash
+set -e
+
+# read the lib/shared.sh and read the slug argument. 
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+cd "$DIR"
+source "$DIR/lib/lib.sh"
+
+
+log_info " => Starting backup process. This might take a while. "
+wait_for_sql
+
+BACKUP_SLUG="$(date +%Y%m%dT%H%M%S)-$(randompw)"
+BACKUP_INSTANCE_DIR="$DEPLOY_BACKUP_INPROGRESS_DIR/$BACKUP_SLUG"
+BACKUP_FINAL_FILE="$DEPLOY_BACKUP_FINAL_DIR/$BACKUP_SLUG.tar.gz"
+
+BACKUP_SQL_FILE="$BACKUP_INSTANCE_DIR/backup.sql"
+
+BACKUP_TRIPLESTORE_DIR="$BACKUP_INSTANCE_DIR/triplestore"
+BACKUP_TRIPLESTORE_SYSTEM="$BACKUP_TRIPLESTORE_DIR/system.nq"
+
+BACKUP_FILESYSTEM_DIR="$BACKUP_INSTANCE_DIR/instances"
+
+# create the backup directories
+log_info " => Making '$BACKUP_INSTANCE_DIR'"
+mkdir -p "$BACKUP_INSTANCE_DIR"
+mkdir -p "$DEPLOY_BACKUP_FINAL_DIR"
+
+# backup the configuration
+cp "$CONFIG_FILE" "$BACKUP_INSTANCE_DIR/.env"
+
+# Backup the sql backup
+log_info " => Backing up the SQL database"
+dockerized_mysqldump --all-databases > "$BACKUP_SQL_FILE"
+
+# Backup the triplestore system
+log_info " => Backing up Triplestore System"
+mkdir -p "$BACKUP_TRIPLESTORE_DIR"
+curl -X GET -H "Accept:application/n-quads" "http://localhost:7200/repositories/SYSTEM/statements?infer=false" > "$BACKUP_TRIPLESTORE_SYSTEM"
+
+# backup individual repos
+for REPO in `grep -oP '(?<=#repositoryID> ")[^"]+' $BACKUP_TRIPLESTORE_SYSTEM`; do
+    log_info " => Backing up Triplestore Repository '$REPO'"
+	curl -X GET -H "Accept:application/n-quads" "http://localhost:7200/repositories/$REPO/statements?infer=false" > "$BACKUP_TRIPLESTORE_DIR/repo_$REPO.nq"
+done
+
+# backup the filesystem
+log_info " => Backing up instance filesystem"
+cp -rpT "$DEPLOY_INSTANCES_DIR" "$BACKUP_FILESYSTEM_DIR"
+
+# Package the backup into a .tar.gz
+log_info " => Packaging '$BACKUP_FINAL_FILE'"
+pushd "$BACKUP_INSTANCE_DIR" > /dev/null
+tar --totals --checkpoint=10000 -zcf "$BACKUP_FINAL_FILE" .
+popd > /dev/null
+
+# Clean up the unpacked backup
+log_info " => Cleaning up '$BACKUP_INSTANCE_DIR'"
+rm -rf "$BACKUP_INSTANCE_DIR"
+
+log_info " => Removing backups older than $MAX_BACKUP_AGE days"
+find "$DEPLOY_BACKUP_FINAL_DIR" -type f -mtime "+$MAX_BACKUP_AGE" -print -exec rm -f {} \;