Install docker 18.06

roles/docker/templates/daemon.json.j2

@@ -0,0 +1,3 @@
+{
+  "experimental": true
+}

roles/docker/templates/docker.service.j2

@@ -0,0 +1,37 @@
+[Unit]
+Description=Docker Application Container Engine
+Documentation=https://docs.docker.com
+After=network-online.target docker.socket firewalld.service
+Wants=network-online.target
+Requires=docker.socket
+
+[Service]
+Type=notify
+# the default is not to use systemd for cgroups because the delegate issues still
+# exists and systemd currently does not support the cgroup feature set required
+# for containers run by docker
+ExecStart=/usr/bin/dockerd --config-file {{ docker_daemon_config }} -H fd://
+ExecReload=/bin/kill -s HUP $MAINPID
+LimitNOFILE=1048576
+# Having non-zero Limit*s causes performance problems due to accounting overhead
+# in the kernel. We recommend using cgroups to do container-local accounting.
+LimitNPROC=infinity
+LimitCORE=infinity
+# Uncomment TasksMax if your systemd version supports it.
+# Only systemd 226 and above support this version.
+TasksMax=infinity
+TimeoutStartSec=0
+# set delegate yes so that systemd does not reset the cgroups of docker containers
+Delegate=yes
+# kill only the docker process, not all processes in the cgroup
+KillMode=process
+# restart the docker process if it exits prematurely
+Restart=on-failure
+StartLimitBurst=3
+StartLimitInterval=60s
+Environment="NO_PROXY=https://cp-par1.scaleway.com,https://cp-ams1.scaleway.com,https://account.scaleway.com,http://169.254.42.42,192.168.66.0/24"
+Environment="DOCKER_OPTS=--iptables=false --ip-masq=false"
+
+[Install]
+WantedBy=multi-user.target
+