My corporation (hospital) network is behind a proxy. I configured the docker client to use this proxy according to the official documentation. And this works as expected when running a container directly or when starting multiple containers via docker compose. I also can see there that environment variables like $HTTP_PROXY are correctly set inside the containers, and internet access is available.
But when creating a service using Docker swarm mode with docker service create (test-wise using only one swarm node), then the proxy configuration is ignored, and containers don’t have those proxy environment variables set. Do I have to add an extra step to tell swarm mode to pick up the proxies configuration?
My output of docker info:
Client:
Context: default
Debug Mode: false
Plugins:
app: Docker App (Docker Inc., v0.9.1-beta3)
buildx: Docker Buildx (Docker Inc., v0.9.1-docker)
compose: Docker Compose (Docker Inc., v2.12.2)
scan: Docker Scan (Docker Inc., v0.21.0)
Server:
Containers: 12
Running: 12
Paused: 0
Stopped: 0
Images: 33
Server Version: 20.10.21
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Native Overlay Diff: true
userxattr: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Cgroup Version: 1
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
Swarm: active
NodeID: w9mihkuv5mc2pttzk99x688x6
Is Manager: true
ClusterID: lfed819tu2dgj3n35gbugsbis
Managers: 1
Nodes: 1
Default Address Pool: 10.0.0.0/8
SubnetSize: 24
Data Path Port: 4789
Orchestration:
Task History Retention Limit: 5
Raft:
Snapshot Interval: 10000
Number of Old Snapshots to Retain: 0
Heartbeat Tick: 1
Election Tick: 10
Dispatcher:
Heartbeat Period: 5 seconds
CA Configuration:
Expiry Duration: 3 months
Force Rotate: 0
Autolock Managers: false
Root Rotation In Progress: false
Node Address: 161.42.235.115
Manager Addresses:
161.42.235.115:2377
Runtimes: io.containerd.runtime.v1.linux runc io.containerd.runc.v2
Default Runtime: runc
Init Binary: docker-init
containerd version: 770bd0108c32f3fb5c73ae1264f7e503fe7b2661
runc version: v1.1.4-0-g5fd4c4d
init version: de40ad0
Security Options:
apparmor
seccomp
Profile: default
Kernel Version: 4.15.0-197-generic
Operating System: Ubuntu 18.04.6 LTS
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 15.66GiB
Name: RADIA-ADITAPP02
ID: H2HA:NA4N:N7OB:VR6W:IMAV:BC4L:LPSB:VU2B:A2L4:4DKU:JM3L:3WCH
Docker Root Dir: /mnt/sdb/docker
Debug Mode: false
HTTP Proxy: xxx:xxx@xxx:8080
HTTPS Proxy: xxx:xxx@xxx:8080
No Proxy: xxx
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
And my proxies configuration in ~/.docker/config.json:
{
"proxies": {
"default": {
"httpProxy": "http://xxx:xxx@xxx:8080",
"httpsProxy": "http://xxx:xxx@xxx:8080",
"noProxy": "xxx"
}
}
}