move systemd prefixes to software prefixes

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2025-11-18 10:01:07 -05:00
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# Borg Backup
- [Borg Backup](#borg-backup)
- [Install Borg](#install-borg)
- [Set up a laptop or workstation client](#set-up-a-laptop-or-workstation-client)
- [Set up a new server client](#set-up-a-new-server-client)
- [Create a Backup Service](#create-a-backup-service)
- [Check backup service logs](#check-backup-service-logs)
- [Run a Manual Backup](#run-a-manual-backup)
- [Back up and Entire System](#back-up-and-entire-system)
- [Upgrade a Borg Repo](#upgrade-a-borg-repo)
## Install Borg
<https://borgbackup.readthedocs.io/en/stable/deployment/central-backup-server.html#user-and-group>
User: backup
Group: backup
Shell: /bin/bash (or other capable to run the borg serve command)
Home: /home/backup
```bash
dnf install borgbackup
useradd backup
mkdir /home/backup/.ssh
touch /home/backup/.ssh/authorized_keys
chown -R backup:backup /home/backup/.ssh
```
## Set up a laptop or workstation client
For backing up your laptop or personal account.
1. On your personal account, set up the borg connection
```bash
export BACKUP_HOST="borg.reeselink.com"
ssh-keygen -C ${USER}@${HOSTNAME} -f ~/.ssh/id_${BACKUP_HOST}
cat <<EOF >> ~/.ssh/config
Host ${BACKUP_HOST}
Hostname ${BACKUP_HOST}
IdentityFile ~/.ssh/id_${BACKUP_HOST}
User backup
Port 22
EOF
echo "export CLIENT_FQDN=${USER}.${HOSTNAME}.reeselink.com"
echo "export SSH_PUBKEY=\"$(cat ~/.ssh/id_${BACKUP_HOST}.pub)\""
```
2. On the borg backup server as the backup user:
```bash
# Use echo from above
export CLIENT_FQDN=
export SSH_PUBKEY=
# Create the authkey entry to restrict the user's access to the borg repo folder
export BORG_COMMAND="cd /home/backup/repos/${CLIENT_FQDN}; borg serve --restrict-to-path /home/backup/repos/${CLIENT_FQDN}"
export AUTHKEY_ENTRY="command=\"${BORG_COMMAND}\",restrict ${SSH_PUBKEY}"
echo $AUTHKEY_ENTRY >> /home/backup/.ssh/authorized_keys
# Create the directory
mkdir repos/${CLIENT_FQDN}
```
3. On your personal account, create the repo and your first backup
```bash
# Do not include the first / in the path
export PATH_TO_BACKUP=home/${USER}
export BACKUP_HOST="borg.reeselink.com"
export BORG_REPO=${BACKUP_HOST}:home
# If not initialized, do that now
borg init --encryption none $BORG_REPO
borg list
# Run backup and timestamp it
borg create \
--verbose \
--filter AME \
--list \
--stats \
--progress \
--show-rc \
--compression lz4 \
--exclude-caches \
${BORG_REPO}::$(date +"%F-%H-%M-%S") \
/${PATH_TO_BACKUP}
# Mount a borg archive
borg mount $BORG_REPO::2025-05-14-00-44-05 /mnt/
# Restore a borg archive to a location (dry run)
# First, cd to the location you want to extract to
cd ~
# Then, extract to that location. --strip-components takes the first n items off a path
borg extract --dry-run --list --strip-components 2 $BORG_REPO::my-files home/USERNAME
```
## Set up a new server client
Backups will be run as the root user. Generate them an SSH key to
On the server as root:
```bash
export BACKUP_HOST="borg.reeselink.com"
ssh-keygen -C root@${HOSTNAME} -f ~/.ssh/id_${BACKUP_HOST}
cat <<EOF >> ~/.ssh/config
Host ${BACKUP_HOST}
Hostname ${BACKUP_HOST}
IdentityFile ~/.ssh/id_${BACKUP_HOST}
User backup
Port 22
EOF
```
Now on borg.reeselink.com as root:
```bash
export CLIENT_FQDN="fqdn.reeseapps.com"
export SSH_PUBKEY="ssh-rsa abcd1234 backup@fqdn.something.com"
export BORG_COMMAND="cd /home/backup/repos/${CLIENT_FQDN}; borg serve --restrict-to-path /home/backup/repos/${CLIENT_FQDN}"
export AUTHKEY_ENTRY="command=\"${BORG_COMMAND}\",restrict ${SSH_PUBKEY}"
echo $AUTHKEY_ENTRY >> /home/backup/.ssh/authorized_keys
mkdir /home/backup/repos/${CLIENT_FQDN}
chown -R backup:backup /home/backup/repos/${CLIENT_FQDN}
```
## Create a Backup Service
Create your vars file in `secrets/host_vars.yaml`
```yaml
repo_name: my_repo
borg_user: backup
borg_host: borg.reeselink.com
borg_passphrase: ""
backup_dirs:
- /home/foobar
exclude_dirs: []
keep_daily: 7
keep_weekly: 4
keep_monthly: 1
stop_services: []
stop_user_services:
- foobar
```
```bash
# Update all existing backup services for podman
for var_file in $(ls active/systemd_borg/secrets); do
ansible-playbook \
-i ansible/inventory.yaml \
-l 3dserver \
active/systemd_borg/install_backup.yaml \
-e "@active/systemd_borg/secrets/$var_file"
done
```
## Check backup service logs
```bash
export SERVER_SSH_NAME=
ssh $SERVER_SSH_NAME journalctl -u 'backup-*' -f
```
## Run a Manual Backup
```bash
borg list borg.reeselink.com:home
# Do not include the first / in the path
export PATH_TO_BACKUP=home/ducoterra
export BORG_REPO=borg.reeselink.com:home
# If not initialized, do that now
borg init --encryption none $BORG_REPO
# Run backup and timestamp it
borg create \
--verbose \
--filter AME \
--list \
--stats \
--progress \
--show-rc \
--compression lz4 \
--exclude-caches \
-e "pp:/${PATH_TO_BACKUP}/.cache" \
-e "re:^${PATH_TO_BACKUP}/\.var/app/[^/]+/cache/" \
-e "CACHEDIR.TAG" \
-e "pp:/${PATH_TO_BACKUP}/.local/share/gnome-boxes" \
-e "pp:/${PATH_TO_BACKUP}/.var/app/org.gnome.Boxes" \
-e "pp:/${PATH_TO_BACKUP}/.var/app/org.gnome.BoxesDevel" \
-e "pp:/${PATH_TO_BACKUP}/.local/share/bottles" \
-e "pp:/${PATH_TO_BACKUP}/.var/app/com.usebottles.bottles" \
-e "pp:/${PATH_TO_BACKUP}/.local/share/libvirt" \
-e "pp:/${PATH_TO_BACKUP}/.config/libvirt" \
-e "pp:/${PATH_TO_BACKUP}/.local/share/containers" \
-e "pp:/${PATH_TO_BACKUP}/.local/share/docker" \
-e "pp:/${PATH_TO_BACKUP}/.npm" \
-e "pp:/${PATH_TO_BACKUP}/.ollama" \
-e "pp:/${PATH_TO_BACKUP}/Downloads" \
-e "pp:/${PATH_TO_BACKUP}/Nextcloud" \
${BORG_REPO}::$(date +"%F-%H-%M-%S") \
/${PATH_TO_BACKUP}
# Mount a borg archive
borg mount $BORG_REPO::2025-05-14-00-44-05 /mnt/
# Restore a borg archive to a location (dry run)
borg extract --dry-run --list --strip-components 1 $BORG_REPO::my-files home/USERNAME
```
### Back up and Entire System
```bash
export BORG_REPO=borg.reeselink.com:root
borg create \
--verbose \
--filter AME \
--list \
--stats \
--progress \
--show-rc \
--compression lz4 \
--exclude root/.cache \
--exclude var/lib/docker \
--exclude var/lib/containers \
--exclude usr/share/ollama \
--exclude home \
--exclude proc \
--exclude dev \
--exclude sys \
--exclude tmp \
--exclude .snapshots \
${BORG_REPO}::$(date +"%F-%H-%M-%S") \
/
```
## Upgrade a Borg Repo
<https://borgbackup.readthedocs.io/en/stable/usage/upgrade.html>