First version
This commit is contained in:
parent
069b5cc564
commit
3402f802a9
5 changed files with 176 additions and 1 deletions
34
Dockerfile
Normal file
34
Dockerfile
Normal file
|
|
@ -0,0 +1,34 @@
|
|||
# docker-duplicity-backup
|
||||
#
|
||||
# Copyright (C) 2021 Pini <gilles.filippini -@- pini.fr>
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation, either version 3 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
FROM debian
|
||||
|
||||
RUN apt-get update && \
|
||||
DEBIAN_FRONTEND=noninteractive apt-get -y install \
|
||||
openssh-client \
|
||||
stunnel4 \
|
||||
rsync \
|
||||
duplicity
|
||||
|
||||
ENTRYPOINT ["docker-entrypoint.sh"]
|
||||
WORKDIR /root
|
||||
CMD ["do_backup"]
|
||||
|
||||
COPY bin/* /usr/local/bin/
|
||||
|
||||
VOLUME /root/.cache/duplicity
|
||||
RUN mkdir init.d
|
||||
18
README.md
18
README.md
|
|
@ -1,3 +1,19 @@
|
|||
# docker-duplicity-backup
|
||||
|
||||
Docker container and script to backup a list of docker volumes to a remote duplicity target.
|
||||
Docker container and script to backup a list of docker volumes to a remote duplicity target.
|
||||
|
||||
## Usage
|
||||
|
||||
```
|
||||
$ ./docker-duplicity-backup <config_file>
|
||||
```
|
||||
|
||||
The `config_file` parameter is mandatory and must designate a script file which set these variables:
|
||||
* `DOCKER_HOSTNAME`: hostname used for the container running the backup (optional; defaults to '`backup`')
|
||||
This hostname should be the same through incremental backups or duplicity will complain
|
||||
* `VOLUMES`: space separated lit of volumes to backup
|
||||
* `DUPLICITY_REMOTE_URI`: target URI for duplicity backup (mandatory; e.g. 'rsync://backup.example.com//target/path')
|
||||
* `DUPLICITY_CACHE_VOLUME`: docker volume name to use for duplicity cache persistency (optional; default to '`backup_cache`')
|
||||
* `INIT_FOLDER`: local path to mount into the container as `/root/init.d` (optional)
|
||||
The scripts into this folder will be sourced by the container's entrypoint before starting the backup. Useful for starting an `stunnel` service
|
||||
* `DOCKER_EXTRA_OPTIONS`: docker run options such as environment variables or extra volumes. Useful for importing an ssh configuration folder
|
||||
|
|
|
|||
29
bin/do_backup
Executable file
29
bin/do_backup
Executable file
|
|
@ -0,0 +1,29 @@
|
|||
#!/bin/bash
|
||||
# docker-duplicity-backup
|
||||
#
|
||||
# Copyright (C) 2021 Pini <gilles.filippini -@- pini.fr>
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation, either version 3 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
month_start=$(date -Iseconds | sed 's/..T..:..:../01T00:00:00/')
|
||||
|
||||
function backup_volume () {
|
||||
local volume="$1"
|
||||
duplicity --no-encryption --full-if-older-than "$month_start" --file-prefix "$volume." /volumes/$volume "$DUPLICITY_REMOTE_URI"
|
||||
}
|
||||
|
||||
for volume in $VOLUMES; do
|
||||
echo "Backuping volume '$volume'..."
|
||||
backup_volume $volume
|
||||
done
|
||||
29
bin/docker-entrypoint.sh
Executable file
29
bin/docker-entrypoint.sh
Executable file
|
|
@ -0,0 +1,29 @@
|
|||
#!/bin/bash
|
||||
# docker-duplicity-backup
|
||||
#
|
||||
# Copyright (C) 2021 Pini <gilles.filippini -@- pini.fr>
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation, either version 3 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
for file in $(ls init.d); do
|
||||
if [ -x init.d/$file ]; then
|
||||
./init.d/$file
|
||||
fi
|
||||
done
|
||||
|
||||
if [ $# -gt 0 ]; then
|
||||
exec "$@"
|
||||
else
|
||||
exec /bin/bash -l
|
||||
fi
|
||||
67
docker-duplicity-backup
Executable file
67
docker-duplicity-backup
Executable file
|
|
@ -0,0 +1,67 @@
|
|||
#!/bin/bash
|
||||
# docker-duplicity-backup
|
||||
#
|
||||
# Copyright (C) 2021 Pini <gilles.filippini -@- pini.fr>
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation, either version 3 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
set -euo pipefail
|
||||
|
||||
function usage () {
|
||||
echo "Usage: $(basename "$0") <config_file>"
|
||||
}
|
||||
|
||||
conf_file="$1"
|
||||
if [ -z "$conf_file" ]; then
|
||||
usage >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
if ! [ -f "$conf_file" ]; then
|
||||
echo "Missing configuration file '$conf_file'" >&2
|
||||
exit 2
|
||||
fi
|
||||
|
||||
echo "Sourcing configuration file '$conf_file'..."
|
||||
source "$conf_file"
|
||||
|
||||
echo "Running docker-duplicity-backup using this configuration:
|
||||
DOCKER_HOSTNAME='${DOCKER_HOSTNAME:-}'
|
||||
VOLUMES='$VOLUMES'
|
||||
DUPLICITY_REMOTE_URI='$DUPLICITY_REMOTE_URI'
|
||||
DUPLICITY_CACHE_VOLUME='${DUPLICITY_CACHE_VOLUME:-}'
|
||||
INIT_FOLDER='${INIT_FOLDER:-}'
|
||||
DOCKER_EXTRA_OPTIONS='${DOCKER_EXTRA_OPTIONS[@]:-}'
|
||||
"
|
||||
|
||||
DOCKER_HOSTNAME="${DOCKER_HOSTNAME:-docker-duplicity-backup}"
|
||||
DUPLICITY_CACHE_VOLUME="${DUPLICITY_CACHE_VOLUME:-backup_cache}"
|
||||
|
||||
declare -a docker_mounts
|
||||
for volume in $VOLUMES; do
|
||||
docker_mounts+=(-v "$volume:/volumes/$volume:ro")
|
||||
done
|
||||
|
||||
if [ -n "$INIT_FOLDER" ]; then
|
||||
docker_mounts+=(-v "$INIT_FOLDER":/root/init.d)
|
||||
fi
|
||||
|
||||
docker run --rm -it \
|
||||
--hostname "$DOCKER_HOSTNAME" \
|
||||
-v "$DUPLICITY_CACHE_VOLUME":/root/.cache/duplicity \
|
||||
"${docker_mounts[@]}" \
|
||||
-e VOLUMES="$VOLUMES" \
|
||||
-e DUPLICITY_REMOTE_URI="$DUPLICITY_REMOTE_URI" \
|
||||
"${DOCKER_EXTRA_OPTIONS[@]:-\--}" \
|
||||
pinidh/docker-duplicity-backup
|
||||
Loading…
Add table
Reference in a new issue