cloudron-support: implement --recreate-docker

scripts/cloudron-support

@@ -470,7 +470,7 @@ function check_disk_space() {
 function recreate_containers() {
     readonly logfile="/home/yellowtent/platformdata/logs/box.log"
 
-    echo "This will re-create all the containers. Services will go down for a bit."
+    echo "This will re-create all the containers. Apps will go down for a while. No data will be lost."
     read -p "Do you want to proceed? (y/N) " -n 1 -r choice
     echo
 
@@ -479,8 +479,8 @@ function recreate_containers() {
     fi
 
     echo ""
-    info " Follow re-create logs in a second terminal with:"
-    info " $ tail -f ${logfile}"
+    info "Follow re-create logs in a second terminal with:"
+    info "$ tail -f ${logfile}"
     echo ""
 
     echo -n "Re-creating addon containers (this takes a while) ."
@@ -494,11 +494,62 @@ function recreate_containers() {
     done
 
     echo ""
-    echo "Addon containers successfully re-created. The apps in the dashboard will say 'Configuring (Queued)'. They will come up in a short while."
+    echo "Done! Addon containers successfully re-created. The apps in the dashboard will say 'Configuring (Queued)'. They will come up in a short while."
 }
 
 function recreate_docker() {
-    echo "ok"
+    readonly logfile="/home/yellowtent/platformdata/logs/box.log"
+
+    docker_root=/var/lib/docker
+    if ! docker_root=$(docker info -f '{{ .DockerRootDir }}'); then
+        warning "Unable to detect docker root. Assuming /var/lib/docker"
+    fi
+
+    echo -e "Use this command when docker storage (at $docker_root) is corrupt. It will delete the docker storage, re-download docker images and re-create containers. Dashboard and apps will be unreachable for a while. No data will be lost.\n"
+    read -p "Do you want to proceed? (y/N) " -n 1 -r choice
+    echo -e "\n"
+
+    if [[ ! $choice =~ ^[Yy]$ ]]; then
+        exit 1
+    fi
+
+    info "Stopping box"
+    systemctl disable box || true
+    systemctl stop -q box || true
+    info "Stopping docker"
+    systemctl disable -q docker || true # for the reboot situation, we don't want it start again
+    systemctl stop -q docker || true
+
+    info "Clearing docker storage at ${docker_root}"
+    if ! rm -rf "${docker_root}/"*; then
+        fail "Could not delete storage directory. This can happen because of stray containers that docker has lost track of. To fix this, reboot the server and run this command again"
+        exit 1
+    fi
+    info "Cleared docker storage"
+
+    info "Starting docker afresh"
+    systemctl enable -q docker
+    systemctl start -q docker
+
+    echo ""
+    info "Follow re-create logs in a second terminal with:"
+    info "$ tail -f ${logfile}"
+    echo ""
+
+    echo -n "Re-downloading images and re-creating addon containers (this takes a while) ."
+    line_count=$(cat "${logfile}" | wc -l)
+ 
+    sed -e 's/"version": ".*",/"version":"48.0.0",/' -i /home/yellowtent/platformdata/INFRA_VERSION
+    systemctl enable box
+    systemctl restart box # this will create docker network as well
+
+    while ! tail -n "+${line_count}" "${logfile}" | grep -q "platform is ready"; do
+        echo -n "."
+        sleep 2
+    done
+
+    echo ""
+    echo "Done! Addon containers successfully re-created. The apps in the dashboard will say 'Configuring (Queued)'. They will come up in a short while."
 }
 
 check_disk_space