I'm still working on my previous error of the openstack appcontainer run error state: I have Docker working behind a Proxy. As you can see in the Docker info i attach to this mail. I tried to do the curl http://10.8.9.54:2379/health with the proxy environment variable and i got timeout error (without it the curl return the normal healthy state for the etcd cluster). So my question is if i'm having a problem with the proxy configuration and docker commands when i'm executing the openstack appcontainer run. And if you know any use case of someone working with Docker behind a proxy and Zun in the Openstack environment. This is the outputh of # systemctl show --property Environment docker Environment=HTTP_PROXY=http://10.8.7.60:3128/ NO_PROXY=localhost, 127.0.0.0/8,10.8.0.0/16 HTTPS_PROXY=http://10.8.7.60:3128/ And this is the one of root@compute /h/team# docker info Containers: 9 Running: 0 Paused: 0 Stopped: 9 Images: 7 Server Version: 18.09.5 Storage Driver: overlay2 Backing Filesystem: extfs Supports d_type: true Native Overlay Diff: true Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge host macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog Swarm: inactive Runtimes: runc Default Runtime: runc Init Binary: docker-init containerd version: bb71b10fd8f58240ca47fbb579b9d1028eea7c84 runc version: 2b18fe1d885ee5083ef9f0838fee39b62d653e30 init version: fec3683 Security Options: apparmor seccomp Profile: default Kernel Version: 4.15.0-48-generic Operating System: Ubuntu 18.04.2 LTS OSType: linux Architecture: x86_64 CPUs: 8 Total Memory: 15.66GiB Name: compute ID: W35H:WCPP:AM3K:NENH:FEOR:S23C:N3FZ:QELB:LLUR:USMJ:IM7W:YMFX Docker Root Dir: /var/lib/docker Debug Mode (client): false Debug Mode (server): false HTTP Proxy: http://10.8.7.60:3128/ HTTPS Proxy: http://10.8.7.60:3128/ No Proxy: localhost,127.0.0.0/8,10.8.0.0/16 Registry: https://index.docker.io/v1/ Labels: Experimental: false Cluster Store: etcd://10.8.9.54:2379 Insecure Registries: 127.0.0.0/8 Live Restore Enabled: false Product License: Community Engine WARNING: API is accessible on http://compute:2375 without encryption. Access to the remote API is equivalent to root access on the host. Refer to the 'Docker daemon attack surface' section in the documentation for more information: https://docs.docker.com/engine/security/security/#docker-daemon-attack-surfa... WARNING: No swap limit support