Added new README

swarm/docker_install.sh

@@ -1,21 +1,27 @@
 #!/bin/bash
 set -eux
 apt-get update
-apt-get install -y --no-install-recommends \
-        apt-transport-https \
-        ca-certificates \
-        curl \
-        software-properties-common \
-        python-minimal zip python-simplejson \
-        gnupg2 \
-        software-properties-common
-apt-get remove docker docker-engine docker.io
 
-curl -fsSL get.docker.com -o get-docker.sh
-sh get-docker.sh
+# Add Docker's official GPG key:
+apt-get update
+apt-get install ca-certificates curl
+install -m 0755 -d /etc/apt/keyrings
+curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
+chmod a+r /etc/apt/keyrings/docker.asc
 
-# install docker-compose
-curl -L "https://github.com/docker/compose/releases/download/1.21.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose && \
+# Add the repository to Apt sources:
+echo \
+  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
+  $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable" | \
+  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
+apt-get update
+
+# Install Docker latest version
+apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin -y
+
+# Install docker-compose
+curl -L "https://github.com/docker/compose/releases/download/v2.35.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose && \
     chmod +x /usr/local/bin/docker-compose
     
+# Add vagrant user to docker group
 usermod -G docker vagrant