add: backup scripts and docker image

scripts/backup-mysql.sh

@@ -0,0 +1,69 @@
+#! /bin/sh
+
+#
+# MySQL Backup
+# Do backup of one or all databases of a given MySQL server
+#
+
+#
+# List Databases
+#
+
+# only argument is a database url
+DB_URL="$1";
+
+# load database values as environment variables while checking URL validity
+dburl-parser.sh ${DB_URL} > /tmp/ofelia.dotenv;
+source /tmp/ofelia.dotenv;
+rm /tmp/ofelia.dotenv;
+
+# set backup destination
+## directory path
+BACKUP_DATABASES_PATH=${BACKUP_DATABASES_PATH:-/var/data/backup-databases};
+mkdir -p ${BACKUP_DATABASES_PATH};
+## file name
+BACKUP_DATABASES_PREFIX="backup-";
+BACKUP_DATABASES_SUFFIX="SQL";
+
+if test "${DB_NAME}" = '*'; then
+    databases=$(mysql\
+        --user=${DB_USERNAME}\
+        --password=${DB_PASSWORD}\
+        --host="${DB_HOST}"\
+        --execute="SHOW DATABASES;"\
+        --vertical\
+        --column-names=false\
+        | grep -ve ^\*\
+        | xargs
+    );
+else
+    databases="${DB_NAME:-:ALL_DATABASES:}";
+fi
+
+for database_item in ${databases}; do
+    if test -z "${database_item}"; then
+        continue;
+    elif test "${database_item}" = ":ALL_DATABASES:"; then
+        database="--all-databases";
+        filename_database="all-databases";
+    else
+        database="--databases ${database_item}";
+        filename_database="${database_item}";
+    fi
+    cat | xargs mysqldump << HEREDOC
+$(test -n ${DB_USERNAME} && echo "--user=${DB_USERNAME}")
+$(test -n ${DB_PASSWORD} && echo "--password=${DB_PASSWORD}")
+$(test -n ${DB_HOST} && echo "--host=${DB_HOST}")
+$(test -n ${DB_PORT} && echo "--port=${DB_PORT}")
+--result-file=$(
+    printf '%s/%s%s-%s_%s.%s'\
+    ${BACKUP_DATABASES_PATH}\
+    ${BACKUP_DATABASES_PREFIX}\
+    ${DB_HOST}\
+    ${filename_database}\
+    $(date +%s)\
+    ${BACKUP_DATABASES_SUFFIX}
+)
+${database}
+HEREDOC
+done