From e29b1eec6c5129b9fde1bf04b549a623128e1d3e Mon Sep 17 00:00:00 2001
From: "nicolas.dorier" <nicolas.dorier@gmail.com>
Date: Sat, 12 Jun 2021 23:08:47 +0900
Subject: [PATCH] Update Mattermost + postgres

---
 docker-compose.yml                    |  7 ++--
 postgres/migrate-docker-entrypoint.sh | 46 +++++++++++++++++++++++++++
 2 files changed, 51 insertions(+), 2 deletions(-)
 create mode 100755 postgres/migrate-docker-entrypoint.sh

diff --git a/docker-compose.yml b/docker-compose.yml
index 61939ec..4d3a2d2 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -68,10 +68,13 @@ services:
     expose:
       - 80
   mattermost_db:
-    image: mattermost/mattermost-prod-db:v5.31.4
+    image: mattermost/mattermost-prod-db:v5.31.6
+    entrypoint: ./migrate-docker-entrypoint.sh
+    command: postgres
     volumes:
       - mm-dbdata:/var/lib/postgresql/data
       - /etc/localtime:/etc/localtime:ro
+      - "./postgres/migrate-docker-entrypoint.sh:/migrate-docker-entrypoint.sh:ro"
     environment:
       - POSTGRES_USER=mmuser
       - POSTGRES_PASSWORD=mmuser_password
@@ -83,7 +86,7 @@ services:
         - mattermost_app
   mattermost_app:
     restart: unless-stopped
-    image: mattermost/mattermost-prod-app:v5.31.4
+    image: mattermost/mattermost-prod-app:v5.31.6
     volumes:
       - mm-config:/mattermost/config:rw
       - mm-data:/mattermost/data:rw
diff --git a/postgres/migrate-docker-entrypoint.sh b/postgres/migrate-docker-entrypoint.sh
new file mode 100755
index 0000000..be276c0
--- /dev/null
+++ b/postgres/migrate-docker-entrypoint.sh
@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+set -Eeo pipefail
+shopt -s extglob
+
+CURRENT_PGVERSION=""
+EXPECTED_PGVERSION="$PG_MAJOR"
+if [[ -f "/var/lib/postgresql/data/PG_VERSION" ]]; then
+    CURRENT_PGVERSION="$(cat /var/lib/postgresql/data/PG_VERSION)"
+fi
+
+if [[ "$CURRENT_PGVERSION" != "$EXPECTED_PGVERSION" ]] && \
+   [[ "$CURRENT_PGVERSION" != "" ]]; then
+   sed -i "s/$/ $CURRENT_PGVERSION/" /etc/apt/sources.list.d/pgdg.list
+   apt-get update && apt-get install -y --no-install-recommends \
+		postgresql-$CURRENT_PGVERSION \
+		postgresql-contrib-$CURRENT_PGVERSION \
+	&& rm -rf /var/lib/apt/lists/*
+
+    export PGBINOLD="/usr/lib/postgresql/$CURRENT_PGVERSION/bin"
+    export PGDATABASE="/var/lib/postgresql/data"
+    export PGDATAOLD="/var/lib/postgresql/data/$CURRENT_PGVERSION"
+    export PGDATANEW="/var/lib/postgresql/data/$EXPECTED_PGVERSION"
+
+    mkdir -p "$PGDATANEW" "$PGDATAOLD"
+    find "$PGDATABASE" -maxdepth 1 -mindepth 1 \
+                      -not -wholename "$PGDATAOLD" \
+                      -not -wholename "$PGDATANEW" \
+                      -exec mv {} "$PGDATAOLD/" \;
+    
+    chmod 700 "$PGDATAOLD" "$PGDATANEW"
+    chown postgres .
+	chown -R postgres "$PGDATAOLD" "$PGDATANEW" "$PGDATABASE"
+	if [ ! -s "$PGDATANEW/PG_VERSION" ]; then
+		PGDATA="$PGDATANEW" eval "gosu postgres initdb $POSTGRES_INITDB_ARGS"
+	fi
+
+    gosu postgres pg_upgrade
+    rm $PGDATANEW/*.conf
+    mv $PGDATANEW/* "$PGDATABASE"
+    mv $PGDATAOLD/*.conf "$PGDATABASE"
+    rm -r "$PGDATANEW"
+    ./delete_old_cluster.sh
+    rm ./analyze_new_cluster.sh
+fi
+
+exec ./entrypoint.sh  "$@"
\ No newline at end of file