openvidu-deployment: Force minimum docker and docker-compose version in update script.

openvidu-deployment/update.sh

@@ -1,32 +1,153 @@
 #!/bin/sh
 set -eu
 export INSTALL_PREFIX="${INSTALL_PREFIX:-/opt/openvidu}"
+export DOCKER_VERSION="${DOCKER_VERSION:-28.1.1}"
+export DOCKER_COMPOSE_VERSION="${DOCKER_COMPOSE_VERSION:-v2.35.1}"
 export OPENVIDU_VERSION="${OPENVIDU_VERSION:-main}"
 export REGISTRY="${REGISTRY:-docker.io}"
 export UPDATER_IMAGE="${UPDATER_IMAGE:-${REGISTRY}/openvidu/openvidu-updater:${OPENVIDU_VERSION}}"
 
+# Function to compare two version strings
+compare_versions() {
+    # Remove 'v' prefix if present
+    VERSION1=$(echo "$1" | sed 's/^v//')
+    VERSION2=$(echo "$2" | sed 's/^v//')
+
+    # Compare versions
+    if [ "$(printf '%s\n' "$VERSION1" "$VERSION2" | sort -V | head -n1)" = "$VERSION1" ]; then
+        if [ "$VERSION1" = "$VERSION2" ]; then
+            echo "equal"
+        else
+            echo "lower"
+        fi
+    else
+        echo "higher"
+    fi
+}
+
+
+wait_for_docker() {
+    echo "Waiting for Docker to start..."
+
+    # Set a countdown (in seconds)
+    COUNTDOWN=60
+
+    while [ "$COUNTDOWN" -gt 0 ]; do
+        if docker info >/dev/null 2>&1; then
+            echo "Docker started successfully."
+            break
+        else
+            # Reduce the countdown by 1 each iteration.
+            COUNTDOWN=$(( COUNTDOWN - 1 ))
+
+            if [ "$COUNTDOWN" -eq 0 ]; then
+                echo "ERROR: Docker did not start within the allocated time."
+                break
+            fi
+
+            sleep 1
+        fi
+    done
+}
+
 # Check if executing as root
 if [ "$(id -u)" -ne 0 ]; then
   echo "Please run as root"
   exit 1
 fi
 
-# Check if docker is installed
-if ! command -v docker > /dev/null 2>&1; then
-    echo "Docker is not installed. Please install Docker and try again."
-    exit 1
-fi
-
-# Check if file /opt/openvidu/deployment-info.yaml exists
-if ! [ -f /opt/openvidu/deployment-info.yaml ]; then
-    echo "OpenVidu is not installed. Please install OpenVidu and try again."
-    exit 1
-fi
-
 # Stop OpenVidu service
 echo "Stopping OpenVidu service..."
 systemctl stop openvidu
 
+# Check Docker installation and version
+DOCKER_NEEDED=false
+if ! command -v docker > /dev/null 2>&1; then
+  echo "Docker not found. Will install Docker version ${DOCKER_VERSION}."
+  DOCKER_NEEDED=true
+else
+  CURRENT_DOCKER_VERSION=$(docker --version | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' | head -1)
+  VERSION_COMPARISON=$(compare_versions "$CURRENT_DOCKER_VERSION" "$DOCKER_VERSION")
+
+  if [ "$VERSION_COMPARISON" = "lower" ]; then
+    echo "Docker version $CURRENT_DOCKER_VERSION is older than required version $DOCKER_VERSION."
+    echo "Please update Docker to version $DOCKER_VERSION or later."
+    exit 1
+  else
+    echo "Docker version $CURRENT_DOCKER_VERSION is compatible with required version $DOCKER_VERSION."
+  fi
+fi
+
+# Install Docker if needed
+if [ "$DOCKER_NEEDED" = true ]; then
+  curl -fsSL https://get.docker.com -o /tmp/get-docker.sh
+  sh /tmp/get-docker.sh --version "${DOCKER_VERSION}" || { echo "Can't install Docker automatically. Install it manually and run this script again"; exit 1; }
+fi
+
+# Check Docker Compose installation and version
+DOCKER_COMPOSE_NEEDED=false
+if ! command -v docker-compose > /dev/null 2>&1; then
+  echo "Docker Compose not found. Will install Docker Compose version ${DOCKER_COMPOSE_VERSION}."
+  DOCKER_COMPOSE_NEEDED=true
+else
+  CURRENT_DC_VERSION=$(docker-compose --version | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' | head -1)
+  # Add 'v' prefix for proper comparison
+  CURRENT_DC_VERSION="v${CURRENT_DC_VERSION}"
+  VERSION_COMPARISON=$(compare_versions "$CURRENT_DC_VERSION" "$DOCKER_COMPOSE_VERSION")
+
+  if [ "$VERSION_COMPARISON" = "lower" ]; then
+    echo "Docker Compose version $CURRENT_DC_VERSION is older than required version $DOCKER_COMPOSE_VERSION."
+    echo "Will update Docker Compose to version $DOCKER_COMPOSE_VERSION."
+    DOCKER_COMPOSE_NEEDED=true
+  else
+    echo "Docker Compose version $CURRENT_DC_VERSION is compatible with required version $DOCKER_COMPOSE_VERSION."
+  fi
+fi
+
+# Install or update Docker Compose if needed
+if [ "$DOCKER_COMPOSE_NEEDED" = true ]; then
+  TIME_LIMIT_SECONDS=20
+  START_TIME=$(awk 'BEGIN{srand(); print srand()}')
+  while true
+  do
+    CURRENT_TIME=$(awk 'BEGIN{srand(); print srand()}')
+    if [ $((CURRENT_TIME-START_TIME)) -gt $TIME_LIMIT_SECONDS ]; then
+      echo "Error downloading docker-compose. Could not download it in $TIME_LIMIT_SECONDS seconds"
+      rm -f /usr/local/bin/docker-compose
+      exit 1
+    fi
+    STATUS_RECEIVED=$(curl --retry 5 --retry-max-time 40 --write-out "%{http_code}\n" -L "https://github.com/docker/compose/releases/download/$DOCKER_COMPOSE_VERSION/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose)
+    CURL_EXIT_CODE=$?
+    if [ $CURL_EXIT_CODE -ne 0 ]; then
+      echo "Error downloading docker-compose. curl failed with exit code $CURL_EXIT_CODE. There are still $((TIME_LIMIT_SECONDS - (CURRENT_TIME - START_TIME))) seconds left to retry..."
+      rm -f /usr/local/bin/docker-compose
+      sleep 2
+      continue
+    fi
+    if [ "${STATUS_RECEIVED}" -ne "200" ]; then
+      echo "Error downloading docker-compose. Received HTTP status code $STATUS_RECEIVED. There are still $((TIME_LIMIT_SECONDS - (CURRENT_TIME - START_TIME))) seconds left to retry..."
+      rm -f /usr/local/bin/docker-compose
+      sleep 2
+      continue
+    fi
+    echo "Success downloading docker-compose version $DOCKER_COMPOSE_VERSION"
+    chmod 755 /usr/local/bin/docker-compose
+    break
+  done
+
+  # Create a symbolic link to docker-compose in the Docker CLI plugins directory
+  # so docker compose can be used also
+  mkdir -p /usr/local/lib/docker/cli-plugins
+  ln -sf /usr/local/bin/docker-compose /usr/local/lib/docker/cli-plugins/docker-compose
+fi
+
+# Restart Docker and wait for it to start
+systemctl enable docker
+systemctl stop docker
+systemctl start docker
+wait_for_docker
+
+
 # Pull updater image
 docker pull "${UPDATER_IMAGE}"