From 08e2b62a9a6dd8f8ac08f0e94b9aa632d5a87a1e Mon Sep 17 00:00:00 2001
From: William Petit <wpetit@cadoles.com>
Date: Thu, 22 Oct 2020 09:38:20 +0200
Subject: [PATCH] chore: initial commit

---
 .gitignore     |  1 +
 README.md      | 55 ++++++++++++++++++++++++++++
 sentry-util.sh | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 155 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 README.md
 create mode 100755 sentry-util.sh

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..f16c1f1
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/backup-*
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..31885e2
--- /dev/null
+++ b/README.md
@@ -0,0 +1,55 @@
+# sentry-util
+
+Script d'aide au suivi du cycle de vie de l'application Sentry.
+
+## Usage
+
+### Sauvegarde et restauration
+
+Deux commandes sont implémentées afin de permettre de sauvegarder et restaurer un environnement Sentry.
+
+#### Effectuer une sauvegarde
+
+Sur la machine hébergeant l'environnement Sentry:
+
+1. Couper l'application Sentry
+
+    ```
+    docker-compose down
+    ```
+
+2. Lancer la sauvegarde
+
+    ```
+    ./sentry-util backup
+    ```
+
+3. Redémarrer l'application Sentry
+
+    ```
+    docker-compose up
+    ```
+
+Le script va créer un dossier `backup-<YYYYMMDD>` dans le répertoire d'exécution. Ce dossier contient les données des différents volumes externes de l'application Sentry.
+
+#### Restaurer une sauvegarde
+
+Sur la machine hébergeant l'environnement Sentry:
+
+1. Couper l'application Sentry
+
+    ```
+    docker-compose down
+    ```
+
+2. Lancer la restauration
+
+    ```
+    ./sentry-util restore <YYYYMMDD>  # Où YYYYMMDD correspond à la date de la sauvegarde
+    ```
+
+3. Redémarrer l'application Sentry
+
+    ```
+    docker-compose up
+    ```
\ No newline at end of file
diff --git a/sentry-util.sh b/sentry-util.sh
new file mode 100755
index 0000000..25b6c55
--- /dev/null
+++ b/sentry-util.sh
@@ -0,0 +1,99 @@
+#!/usr/bin/env bash
+
+set -eo pipefail
+
+DOCKER_VOLUMES="sentry-postgres sentry-data sentry-redis sentry-zookeeper sentry-kafka sentry-clickhouse sentry-symbolicator"
+BACKUP_BASE_DIR="."
+BACKUP_DIR_PREFIX="backup-"
+CONTAINER_VOLUME_BASE_DIR="/volumes"
+CONTAINER_BACKUP_BASE_DIR="/backup"
+SCRIPT_DIR="$( cd "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"
+SCRIPT_NAME="sentry-util.sh"
+
+function_exists() {
+  set +e
+  declare -f -F $1 > /dev/null
+  local ret=$?
+  set -e
+  echo $ret
+}
+
+function backup {
+  [ ! -z "$BACKUP_BASE_DIR" ] && mkdir -p "$BACKUP_BASE_DIR"
+
+  local today=$(date +%Y%m%d)
+  local backup_dir=$(readlink -f "$BACKUP_BASE_DIR/$BACKUP_DIR_PREFIX$today")
+
+  mkdir -p "$backup_dir"
+
+  echo "Creating backup directory '$backup_dir'..."
+
+  run_container "backup-volumes" "-v $backup_dir:$CONTAINER_BACKUP_BASE_DIR"
+}
+
+function run_container {
+  local docker_cmd="$1"
+  local additional_docker_args="$2"
+
+  local volume_args=""
+  for volume in $DOCKER_VOLUMES; do
+    volume_args="$volume_args -v $volume:$CONTAINER_VOLUME_BASE_DIR/$volume"
+  done
+
+  docker run --rm -it \
+    $volume_args \
+    $additional_docker_args \
+    -v "$SCRIPT_DIR/$SCRIPT_NAME:/usr/local/bin/$SCRIPT_NAME" \
+    bash:5 \
+    /usr/local/bin/$SCRIPT_NAME $docker_cmd
+}
+
+function backup-volumes {
+  for volume in $DOCKER_VOLUMES; do
+    local volume_dir="$CONTAINER_VOLUME_BASE_DIR/$volume"
+    echo "Copying volume '$volume' data..."
+    rm -rf "$CONTAINER_BACKUP_BASE_DIR/$volume"
+    cp -aR "$volume_dir" "$CONTAINER_BACKUP_BASE_DIR/"
+  done
+}
+
+function restore-volumes {
+  for volume in $DOCKER_VOLUMES; do
+    local volume_dir="$CONTAINER_VOLUME_BASE_DIR/$volume"
+    echo "Restoring volume '$volume' data..."
+    rm -rf "$volume_dir/"*
+    cp -aR "$CONTAINER_BACKUP_BASE_DIR/$volume/"* "$volume_dir/"
+  done
+}
+
+function restore {
+  local backup_date=$1
+
+  if [ -z "$backup_date" ]; then
+    echo 1>&2 "Vous devez spécifier une date au format YYYYMMDD en premier argument."
+    exit 1
+  fi
+
+  local backup_dir=$(readlink -f "$BACKUP_BASE_DIR/$BACKUP_DIR_PREFIX$backup_date")
+
+  if [ ! -d "$backup_dir" ]; then
+    echo 1>&2 "Le dossier de sauvegarde '$backup_dir' n'existe pas."
+    exit 1
+  fi
+
+  run_container "restore-volumes" "-v $backup_dir:$CONTAINER_BACKUP_BASE_DIR"
+}
+
+function main {
+  local command=$1
+  local command_args=${@:2}
+  
+  if [ "$(function_exists $command)" == "1" ]; then
+    echo 1>&2 "La commande '$command' n'existe pas."
+    exit 1
+  fi
+
+  $command $command_args
+}
+
+main $@