(feat) Check the minimum docker version (20.10) during setup and upgrade

CHANGELOG.md

@@ -15,6 +15,7 @@
 - Fixed all react components code according to eslint rules
 - Renamed proof-of-identity to supporting-documents in react components and in end-user strings
 - Use bat to display coloured documentation of environment variables during setup
+- Check the minimum docker version (20.10) during setup and upgrade
 - Fix a bug: when email was mapped from SSO provided as empty string -> unable to merge account
 - Fix a bug: when an empty data was retured by the SSO, unable to edit it
 - Fix a bug: user can change his group in the profile completion page, even if mapped from the SSO

doc/production_readme.md

@@ -50,7 +50,7 @@ This might work on other linux systems, and CPU architectures but this is untest
 `curl` and `bash` are needed to retrieve and run the automated deployment scripts.  
 Then the various scripts will check for their own dependencies.
 
-Moreover, the main software dependencies to run fab-manager are [Docker](https://docs.docker.com/engine/installation/linux/docker-ce/debian/) v20.0 or above and [Docker Compose](https://docs.docker.com/compose/install/) 
+Moreover, the main software dependencies to run fab-manager are [Docker](https://docs.docker.com/engine/installation/linux/docker-ce/debian/) v20.10 or above and [Docker Compose](https://docs.docker.com/compose/install/) 
 They can be easily installed using the [`prepare-vps.sleede.com` script below](#prepare-the-server).
 
 <a name="setup-the-domain-name"></a>

setup/setup.sh

@@ -54,11 +54,25 @@ system_requirements()
       echo -e "\e[91m[ ❌ ] $_command was not found, exiting...\e[39m" && exit 1
     fi
   done
+  echo "detecting docker version..."
+  DOCKER_VERSION=$(docker -v | grep -oP "([0-9]{1,}\.)+[0-9]{1,}")
+  if verlt "$DOCKER_VERSION" 20.10; then
+    echo -e "\e[91m[ ❌ ] The installed docker version ($DOCKER_VERSION) is lower than the minimum required version (20.10). Exiting...\e[39m" && exit 1
+  fi
   echo "detecting docker-compose..."
   docker-compose version
   printf "\e[92m[ ✔ ] All requirements successfully checked.\e[39m \n\n"
 }
 
+# compare versions utilities
+# https://stackoverflow.com/a/4024263/1039377
+verlte() {
+    [  "$1" = "$(echo -e "$1\n$2" | sort -V | head -n1)" ]
+}
+verlt() {
+    [ "$1" = "$2" ] && return 1 || verlte "$1" "$2"
+}
+
 docker-compose()
 {
   if ! docker compose version 1>/dev/null 2>/dev/null

setup/upgrade.sh

@@ -110,6 +110,11 @@ config()
     echo -e "\e[91m[ ❌ ] docker-compose.yml was not found in ${PWD}. Please run this script from the Fab-manager's installation folder. Exiting... \e[39m"
     exit 1
   fi
+    echo "Checking docker version..."
+    DOCKER_VERSION=$(docker -v | grep -oP "([0-9]{1,}\.)+[0-9]{1,}")
+    if verlt "$DOCKER_VERSION" 20.10; then
+      echo -e "\e[91m[ ❌ ] The installed docker version ($DOCKER_VERSION) is lower than the minimum required version (20.10). Exiting...\e[39m" && exit 1
+    fi
 
   SERVICE="$(yq eval '.services.*.image | select(. == "sleede/fab-manager*") | path | .[-2]' docker-compose.yml)"
   YES_ALL=${Y:-false}