new: instruction for backups of non-compose based solution

Signed-off-by: Valentin Lab <valentin.lab@kalysto.org>

README.org

@@ -613,9 +613,133 @@ PGHOST=172.19.0.2 PGUSER=postgres pgm ls
 tail -f /srv/datastore/data/cron/var/log/cron/letsencrypt-renew_script.log -n 200
 #+END_SRC
 
+*** 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[@]}" "$@"
+}
+
+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 ${elapsed}s)" >&2
+done
+EOF
+chmod +x /usr/local/sbin/mysql-backup
+
+cat <<EOF > /etc/cron.d/mysql-backup
+SHELL=/bin/bash
+PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
+
+0 * * * *   root   /usr/local/sbin/mysql-backup --host \$(docker-ip "$MYSQL_CONTAINER" 2>/dev/null | sed -r 's/ +/ /g' | cut -f 3 -d " ") | logger -t mysql-backup
+
+EOF
+
+mkdir -p /etc/mirror-dir &&
+cat <<EOF >> /etc/mirror-dir/mirror-dir.conf
+/var/backups/mysql:
+  exclude:
+    - "/*.inprogress"
+EOF
+
+#+end_src
+
+
+
 *** rsync-backup
 
-**** Installation du backup
+**** Installation du backup via compose
 
 A faire depuis le serveur ayant des services à backupper.
 
@@ -650,6 +774,76 @@ EOF
 compose build mongo ## force the build of the new mongo image with regular dumps
 #+end_src
 
+**** Installation du backup sur un host debian
+
+Cela fonctionnera sur tout host ayant une base debian.
+
+#+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
+
+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')"
+
+EOF
+
+cat <<EOF > /etc/cron.d/mirror-dir
+SHELL=/bin/bash
+PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
+
+$((RANDOM % 60)) * * * *   root   mirror-dir -d $BACKUP_SERVER -u rsync ${DESTS[@]} 2>&1 | logger -t mirror-dir
+EOF
+
+#+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
+/home:
+    exclude:
+        - /*/.cache/
+        - /*/.gvfs/
+        - /*/.local/share/Trash/files/
+        - /*/.Trash/
+        - /*/.mozilla/firefox/*/Cache/
+        - /*/.mozilla/firefox/*/storage/default/*/cache/
+/media/data:
+    exclude:
+        - /binary/games/_steam
+        - /incoming
+        - /.Trash*
+        - /lost+found
+        - /backup/device
+EOF
+#+end_src
+
+
+
 
 * Interventions avancées