add manual installation for docker-compose

scripts/guacamole_init.template.sh

@@ -51,6 +51,17 @@ exec 2>&1                       # Redirect standard error to standard out
 # - Main --------------------------------------------------------------------
 echo "INFO: Start to initialize the guacamole stack at $(date)" 
 
+# get latest release of docker-compose
+if ! command -v docker-compose &> /dev/null; then
+    DOCKER_COMPOSE_URL=$(curl -sL https://api.github.com/repos/docker/compose/releases/latest | jq -r '.assets[].browser_download_url'|grep -E "$(uname -s)-$(uname -m)$")
+    DOCKER_COMPOSE_RELEASE=$(echo $DOCKER_COMPOSE_URL|sed -e 's/.*\([[:digit:]]\+\.[[:digit:]]\+\.[[:digit:]]\+\).*/\1/')
+    curl -L "$DOCKER_COMPOSE_URL" -o /usr/local/bin/docker-compose
+    curl -L "https://raw.githubusercontent.com/docker/compose/$DOCKER_COMPOSE_RELEASE/contrib/completion/bash/docker-compose" -o /etc/bash_completion.d/docker-compose
+    chmod +x /usr/local/bin/docker-compose
+    ln -s /usr/local/bin/docker-compose /bin/docker-compose
+    docker-compose --version
+fi
+
 # fix permisions
 echo "INFO: Change permissions for /home/$GUACAMOLE_USER to $GUACAMOLE_USER" 
 chown -R $GUACAMOLE_USER:$GUACAMOLE_USER /home/$GUACAMOLE_USER