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new: [mailcow-backup-install] new script 

Signed-off-by: Valentin Lab <valentin.lab@kalysto.org>
rc1
Valentin Lab 5 years ago
parent
8fe83587f1
commit
e5ab06a200
2 changed files with 122 additions and 165 deletions
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  1. 193
      README.org
  2. 94
      bin/mailcow-backup-install

193
README.org
View File

@ -615,137 +615,28 @@ tail -f /srv/datastore/data/cron/var/log/cron/letsencrypt-renew_script.log -n 20
*** mysql
**** docker sans compose
***** backup régulier depuis l'hôte
#+begin_src sh
MYSQL_ROOT_PASSWORD=xxx
MYSQL_CONTAINER=mailcowdockerized_mysql-mailcow_1
apt-get install -y mysql-client </dev/null
cat <<EOF > ~/.my.cnf
[client]
password=${MYSQL_ROOT_PASSWORD}
EOF
chmod 600 ~/.my.cnf
cat <<'EOF' > /usr/local/sbin/mysql-backup
#!/bin/bash
. /etc/shlib
include common
include pretty
usage="$exname [--host HOST] [DATABASE...]"
DBS=()
host=
while [ "$1" ]; do
case "$1" in
"--help"|"-h")
print_usage
exit 0
;;
"--host")
host="$2"
shift
;;
*)
DBS+=("$1")
;;
esac
shift
done
mysql_opts=()
if [ "$host" ]; then
mysql_opts+=(-h "$host")
fi
m() {
mysql "${mysql_opts[@]}" -Bs "$@"
}
md() {
mysqldump "${mysql_opts[@]}" "$@"
}
**** sur installation mailcow
mysql_databases() {
echo "SHOW DATABASES" | m
}
mysql_tables() {
local db="$1"
echo "SHOW TABLES" | m "$db"
}
if [ "${#DBS[@]}" == 0 ]; then
DBS=($(mysql_databases)) || exit 1
fi
mkdir -p /var/backups/mysql
for db in "${DBS[@]}"; do
if [[ "$db" == "information_schema" || "$db" == "performance_schema" || "$db" == "mysql" ]]; then
continue
fi
echo "Dumping database $db..." >&2
# omitting all the rotation logic
dst=/"var/backups/mysql/$db"
[ -d "$dst.old" ] && rm -rf "$dst.old"
[ -d "$dst" ] && mv "$dst" "$dst.old"
mkdir -p "$dst.inprogress"
(( start = SECONDS ))
md "$db" --routines --no-data --add-drop-database --database "$db" | gzip --rsyncable > "$dst.inprogress/schema.sql.gz"
tables=$(mysql_tables "$db")
for table in $tables; do
backup_file="$dst.inprogress/${table}.sql.gz"
echo " Dumping $table into ${backup_file}"
md "$db" "$table" | gzip --rsyncable > "$backup_file" || break
done
mv "$dst.inprogress" "$dst"
[ -d "$dst.old" ] && rm -rf "$dst.old"
(( elapsed = SECONDS - start ))
echo " ..dumped $db to $dst ($(du -sh "$dst" | cut -f 1) in ${elapsed}s)" >&2
done
EOF
chmod +x /usr/local/sbin/mysql-backup
Le script =mailcow-backup-install= fourni via =myc-manage= s'occupe
de mettre en place le dump de =mysql=, et le système pour envoyer les
backup régulièrement via rsync.
cat <<EOF > /etc/cron.d/mysql-backup
SHELL=/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
0 * * * * root /usr/local/sbin/mysql-backup --host \$(docker-ip "$MYSQL_CONTAINER" 2>/dev/null | sed -r 's/ +/ /g' | cut -f 3 -d " ") | logger -t mysql-backup
EOF
**** docker sans compose
mkdir -p /etc/mirror-dir &&
cat <<EOF >> /etc/mirror-dir/mirror-dir.conf
/var/backups/mysql:
exclude:
- "/*.inprogress"
EOF
#+begin_src sh
export MYSQL_ROOT_PASSWORD=xxx
export MYSQL_CONTAINER=mailcowdockerized_mysql-mailcow_1
/srv/charm-store/mysql/hooks/install.d/60-backup.sh
#+end_src
*** rsync-backup
**** Installation du backup via compose
A faire depuis le serveur ayant des services à backupper.
Il y a une partie à copier-coller sur le serveur de backup.
Ne pas oublier de relancer le serveur de backup pour le prendre en compte.
A faire depuis le serveur ayant des services géré par =compose= à
backupper.
#+begin_src sh
DOMAIN=xxx.fr
@ -762,68 +653,42 @@ rsync-backup:
$(cat /root/.ssh/rsync_rsa | sed -r 's/^/ /g')
EOF
echo "copier-coller ceci dans le '/etc/compose/compose.yml' de ${BACKUP_SERVER%:*}:"
echo
cat <<EOF
$DOMAIN: "$(
cat /root/.ssh/rsync_rsa.pub |
fold -w 67 | sed -r 's/$/\\/g;2,$ s/^/ /g;$,$ s/\\$//g')"
dest="$BACKUP_SERVER"
dest="${dest%/*}"
dest="${dest%%:*}"
echo "Contacting '$dest' host, to add key in authorized key:"
ssh "root@${dest}" -- compose-add-rsync-key "\"$DOMAIN\"" "\"$(cat /root/.ssh/rsync_rsa.pub)\""
EOF
compose build mongo ## force the build of the new mongo image with regular dumps
#+end_src
**** Installation du backup sur un host debian
**** Installation du backup sur une installe mailcow
Cela fonctionnera sur tout host ayant une base debian.
Le script suivant va s'occuper de tout, il doit être lancé
depuis l'hôte faisant tourner l'installation =mailcow=.
#+begin_src sh
DOMAIN=xxx.fr
BACKUP_SERVER=core-06.0k.io:10023
## les répertoires à sauvegarder
DESTS=(
/var/backups
/etc
)
## installation de rsync
apt-get install -y rsync </dev/null
## Création de l'utilisateur rsync
mkdir -p /var/lib/rsync && \
groupadd -r rsync && \
useradd -r rsync -d /var/lib/rsync -g rsync && \
chown rsync:rsync /var/lib/rsync
## Création de la clé ssh pour rsync
su -c 'ssh-keygen -t rsa -N "" -f ~/.ssh/id_rsa -q -C "rsync@'"$DOMAIN" - rsync
mailcow-backup-install
#+end_src
echo "copier-coller ceci dans le '/etc/compose/compose.yml' de ${BACKUP_SERVER%:*}:"
echo
cat <<EOF
$DOMAIN: "$(
cat /var/lib/rsync/.ssh/rsync_rsa.pub |
fold -w 67 | sed -r 's/$/\\/g;2,$ s/^/ /g;$,$ s/\\$//g')"
**** Installation du backup sur un host debian
EOF
Cela fonctionnera sur tout host ayant une base debian.
cat <<EOF > /etc/cron.d/mirror-dir
SHELL=/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
#+begin_src sh
export DOMAIN=mail.myceliandre.fr
export BACKUP_SERVER=core-06.0k.io:10023
$((RANDOM % 60)) * * * * root mirror-dir -d $BACKUP_SERVER -u rsync ${DESTS[@]} 2>&1 | logger -t mirror-dir
EOF
/srv/charm-store/rsync-backup/hooks/install.d/60-install.sh
#+end_src
les logs sont dans =/var/log/mirror.log=.
Note, il est possible de spécifier des exclusions pour chaque
répértoire mirroré de telle façon:
#+begin_src sh
cat <<EOF > /etc/mirror-dir/mirror-dir.conf
cat <<EOF > /etc/mirror-dir/config.yml
/home:
exclude:
- /*/.cache/
@ -843,8 +708,6 @@ EOF
#+end_src
* Interventions avancées
Description des process avancés d'intervention sur une installation existante.

94
bin/mailcow-backup-install
View File

@ -0,0 +1,94 @@
#!/bin/bash
. /etc/shlib
include common
include pretty
is-valid-mailcow-root-dir() {
local dir="$1"
(
[ -e "$dir" ] &&
cd "$dir" &&
[ -e ".git" ]
)
}
## find installation
MAILCOW_ROOT=${MAILCOW_ROOT:-/opt/mailcow-dockerized}
MYSQL_CONTAINER=${MYSQL_CONTAINER:-mailcowdockerized_mysql-mailcow_1}
## check ok
is-valid-mailcow-root-dir "$MAILCOW_ROOT" || {
err "Directory '$MAILCOW_ROOT' is not a valid mailcow root installation directory."
echo " You might want to setup \$MAILCOW_ROOT to the proper" \
"location of your mailcow root install" >&2
exit 1
}
BACKUP_SERVER=${BACKUP_SERVER:-core-06.0k.io:10023}
DOMAIN=$(cat "$MAILCOW_ROOT/.env" | grep ^MAILCOW_HOSTNAME= | cut -f 2 -d =) || {
err "Couldn't find MAILCOW_ROOT in file \"$MAILCOW_ROOT/.env\"."
exit 1
}
## get MYSQL_ROOT_PASSWORD
MYSQL_ROOT_PASSWORD=$(cat "$MAILCOW_ROOT/.env" | grep ^DBROOT= | cut -f 2 -d =) || {
err "Couldn't find DBROOT in file \"$MAILCOW_ROOT/.env\"."
exit 1
}
container_id=$(docker ps -f name="$MYSQL_CONTAINER" --format "{{.ID}}")
if [ -z "$container_id" ]; then
err "Couldn't find docker container named '$MYSQL_CONTAINER'."
exit 1
fi
export MYSQL_ROOT_PASSWORD
export MYSQL_CONTAINER
export BACKUP_SERVER
export DOMAIN
(
cd /srv/charm-store/rsync-backup
bash ./hooks/install.d/60-install.sh
) || {
echo "rsync-backup failed to install."
exit 1
}
(
cd /srv/charm-store/mysql
bash ./hooks/install.d/60-backup.sh
) || {
echo "mysql dump failed to install."
exit 1
}
if ! sources=$(shyaml get-values default.sources < /etc/mirror-dir/config.yml); then
echo "Couldn't query 'default.sources' in '/etc/mirror-dir/config.yml'." >&2
exit 1
fi
if ! echo "$sources" | grep "^/var/lib/docker/volumes/\*_vmail{,-attachments-vol}-\*/_data$" 2>/dev/null; then
sed -i '/sources:/a\ - "/var/lib/docker/volumes/*_vmail{,-attachments-vol}-*/_data"' \
/etc/mirror-dir/config.yml
fi
dest="$BACKUP_SERVER"
dest="${dest%/*}"
dest="${dest%%:*}"
echo "Contacting '$dest' host, to add key in authorized key:"
ssh "root@${dest}" -- compose-add-rsync-key "\"$DOMAIN\"" "\"$(cat /var/lib/rsync/.ssh/id_rsa.pub)\""
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