Docker swarm not configuring default gateway on containers connected to overlay network #1432
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We're not sure if this is a presentation or substantial issue, though it sounds like it's just a 'value is not in the API' issue; likewise @akerouanton mentioned that he will look at this (and testing with Stack, specifically) as part of his network test suite work in the future. |
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[ { "Name": "traefik_traefik-network", "Id": "gre6shjq24dnp3lb20hajeyxl", "Created": "2022-08-17T21:09:46.857818326+02:00", "Scope": "swarm", "Driver": "overlay", "EnableIPv6": false, "IPAM": { "Driver": "default", "Options": null, "Config": [ { "Subnet": "10.0.2.0/24", "Gateway": "10.0.2.1" } ] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": { "Network": "" }, "ConfigOnly": false, "Containers": { "853176ebddfdfac0c298ee5ee4abae1366fe3a42c064f7384f3e4fe108a48dee": { "Name": "reverse-proxy_reverse-proxy.1.n8dxvft590laao30f7y1zspwe", "EndpointID": "532d9f9cc1d1127d4e03d5052054c7b96f8131c6b74e5d748bdf69323a7cacd5", "MacAddress": "02:42:0a:00:02:04", "IPv4Address": "10.0.2.4/24", "IPv6Address": "" }, "lb-traefik_traefik-network": { "Name": "traefik_traefik-network-endpoint", "EndpointID": "1bb5b3c913466a8de526bc5158cfc54f808fda5c01e10614660f4cdd799bafe9", "MacAddress": "02:42:0a:00:02:05", "IPv4Address": "10.0.2.5/24", "IPv6Address": "" } }, "Options": { "com.docker.network.driver.overlay.vxlanid_list": "4098" }, "Labels": { "com.docker.stack.namespace": "reverse-proxy" }, "Peers": [ { "Name": "8d376eb566f8", "IP": "X.X.X.X" }, { "Name": "372bc9b0c934", "IP": "Y.Y.Y.Y" } ] } ][ { "Id": "853176ebddfdfac0c298ee5ee4abae1366fe3a42c064f7384f3e4fe108a48dee", "Created": "2022-08-17T19:09:43.013601794Z", "Path": "/entrypoint.sh", "Args": [ "traefik" ], "State": { "Status": "running", "Running": true, "Paused": false, "Restarting": false, "OOMKilled": false, "Dead": false, "Pid": 4223, "ExitCode": 0, "Error": "", "StartedAt": "2022-08-17T19:09:48.193302818Z", "FinishedAt": "0001-01-01T00:00:00Z" }, "Image": "sha256:22c6901de2be6ce40b6c8b10426a5617c3a8715f78164f2408e94fe34e55110d", "ResolvConfPath": "/var/lib/docker/containers/853176ebddfdfac0c298ee5ee4abae1366fe3a42c064f7384f3e4fe108a48dee/resolv.conf", "HostnamePath": "/var/lib/docker/containers/853176ebddfdfac0c298ee5ee4abae1366fe3a42c064f7384f3e4fe108a48dee/hostname", "HostsPath": "/var/lib/docker/containers/853176ebddfdfac0c298ee5ee4abae1366fe3a42c064f7384f3e4fe108a48dee/hosts", "LogPath": "/var/lib/docker/containers/853176ebddfdfac0c298ee5ee4abae1366fe3a42c064f7384f3e4fe108a48dee/853176ebddfdfac0c298ee5ee4abae1366fe3a42c064f7384f3e4fe108a48dee-json.log", "Name": "/reverse-proxy_reverse-proxy.1.n8dxvft590laao30f7y1zspwe", "RestartCount": 0, "Driver": "overlay2", "Platform": "linux", "MountLabel": "", "ProcessLabel": "", "AppArmorProfile": "docker-default", "ExecIDs": null, "HostConfig": { "Binds": null, "ContainerIDFile": "", "LogConfig": { "Type": "json-file", "Config": { "max-file": "2", "max-size": "50m", "tag": "{{.ImageName}}|{{.Name}}|{{.ImageFullID}}|{{.FullID}}|{{index .ContainerLabels \"com.docker.compose.project\"}}|{{index .ContainerLabels \"com.docker.compose.service\"}}" } }, "NetworkMode": "default", "PortBindings": { "443/tcp": [ { "HostIp": "", "HostPort": "443" } ], "5432/tcp": [ { "HostIp": "", "HostPort": "5432" } ], "80/tcp": [ { "HostIp": "", "HostPort": "80" } ] }, "RestartPolicy": { "Name": "", "MaximumRetryCount": 0 }, "AutoRemove": false, "VolumeDriver": "", "VolumesFrom": null, "CapAdd": null, "CapDrop": null, "CgroupnsMode": "private", "Dns": null, "DnsOptions": null, "DnsSearch": null, "ExtraHosts": null, "GroupAdd": null, "IpcMode": "private", "Cgroup": "", "Links": null, "OomScoreAdj": 0, "PidMode": "", "Privileged": false, "PublishAllPorts": false, "ReadonlyRootfs": false, "SecurityOpt": null, "UTSMode": "", "UsernsMode": "", "ShmSize": 67108864, "Runtime": "runc", "ConsoleSize": [ 0, 0 ], "Isolation": "default", "CpuShares": 0, "Memory": 157286400, "NanoCpus": 0, "CgroupParent": "", "BlkioWeight": 0, "BlkioWeightDevice": null, "BlkioDeviceReadBps": null, "BlkioDeviceWriteBps": null, "BlkioDeviceReadIOps": null, "BlkioDeviceWriteIOps": null, "CpuPeriod": 0, "CpuQuota": 0, "CpuRealtimePeriod": 0, "CpuRealtimeRuntime": 0, "CpusetCpus": "", "CpusetMems": "", "Devices": null, "DeviceCgroupRules": null, "DeviceRequests": null, "KernelMemory": 0, "KernelMemoryTCP": 0, "MemoryReservation": 0, "MemorySwap": 314572800, "MemorySwappiness": null, "OomKillDisable": null, "PidsLimit": null, "Ulimits": [], "CpuCount": 0, "CpuPercent": 0, "IOMaximumIOps": 0, "IOMaximumBandwidth": 0, "Mounts": [ { "Type": "bind", "Source": "/var/run/docker.sock", "Target": "/var/run/docker.sock", "ReadOnly": true }, { "Type": "volume", "Source": "reverse-proxy_certificates", "Target": "/acme", "VolumeOptions": { "Labels": { "com.docker.stack.namespace": "reverse-proxy" } } } ], "MaskedPaths": [ "/proc/asound", "/proc/acpi", "/proc/kcore", "/proc/keys", "/proc/latency_stats", "/proc/timer_list", "/proc/timer_stats", "/proc/sched_debug", "/proc/scsi", "/sys/firmware" ], "ReadonlyPaths": [ "/proc/bus", "/proc/fs", "/proc/irq", "/proc/sys", "/proc/sysrq-trigger" ] }, "GraphDriver": { "Data": { "LowerDir": "/var/lib/docker/overlay2/c935a891ecfe09bd8b5b3b923747adacc52bd29e5f42d3f42a61790a7677647c-init/diff:/var/lib/docker/overlay2/1782b79aa6d0329c2f4cb1882e2bea204c0118540b187b934277cad395b061c2/diff:/var/lib/docker/overlay2/aab0dadf085a30bd154795747ebd6ccfd0b2ec4f8c186b353ebda44dcf5df0e1/diff:/var/lib/docker/overlay2/e9973b879bada1914ca3f6593c9404db20f508c87fcf35721d0ec024dceb9ade/diff:/var/lib/docker/overlay2/6acecb8062f804cadc8962f8256b65b3f01ae6d81dcbe1caa7e381ec8f1709b3/diff", "MergedDir": "/var/lib/docker/overlay2/c935a891ecfe09bd8b5b3b923747adacc52bd29e5f42d3f42a61790a7677647c/merged", "UpperDir": "/var/lib/docker/overlay2/c935a891ecfe09bd8b5b3b923747adacc52bd29e5f42d3f42a61790a7677647c/diff", "WorkDir": "/var/lib/docker/overlay2/c935a891ecfe09bd8b5b3b923747adacc52bd29e5f42d3f42a61790a7677647c/work" }, "Name": "overlay2" }, "Mounts": [ { "Type": "bind", "Source": "/var/run/docker.sock", "Destination": "/var/run/docker.sock", "Mode": "", "RW": false, "Propagation": "rprivate" }, { "Type": "volume", "Name": "reverse-proxy_certificates", "Source": "/var/lib/docker/volumes/reverse-proxy_certificates/_data", "Destination": "/acme", "Driver": "local", "Mode": "z", "RW": true, "Propagation": "" } ], "Config": { "Hostname": "853176ebddfd", "Domainname": "", "User": "", "AttachStdin": false, "AttachStdout": false, "AttachStderr": false, "ExposedPorts": { "443/tcp": {}, "5432/tcp": {}, "80/tcp": {} }, "Tty": false, "OpenStdin": false, "StdinOnce": false, "Env": [ "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" ], "Cmd": [ "traefik" ], "Image": "traefik:v2.6@sha256:adf62c4c01290c29816f00b36a309df577771701e2feb2c9214fd3b6bd1e2894", "Volumes": null, "WorkingDir": "", "Entrypoint": [ "/entrypoint.sh" ], "OnBuild": null, "Labels": { "com.docker.stack.namespace": "reverse-proxy", "com.docker.swarm.node.id": "lbwupro0h6kjs34p7gy2603m0", "com.docker.swarm.service.id": "w5az89qy1m7mvtwkm6jrzox5o", "com.docker.swarm.service.name": "reverse-proxy_reverse-proxy", "com.docker.swarm.task": "", "com.docker.swarm.task.id": "n8dxvft590laao30f7y1zspwe", "com.docker.swarm.task.name": "reverse-proxy_reverse-proxy.1.n8dxvft590laao30f7y1zspwe", "org.opencontainers.image.description": "A modern reverse-proxy", "org.opencontainers.image.documentation": "https://docs.traefik.io", "org.opencontainers.image.title": "Traefik", "org.opencontainers.image.url": "https://traefik.io", "org.opencontainers.image.vendor": "Traefik Labs", "org.opencontainers.image.version": "v2.6.7" } }, "NetworkSettings": { "Bridge": "", "SandboxID": "904f1f845cd275175af86830c77ef9f917bdf45953be14175b897b1e5289c58b", "HairpinMode": false, "LinkLocalIPv6Address": "", "LinkLocalIPv6PrefixLen": 0, "Ports": { "443/tcp": [ { "HostIp": "0.0.0.0", "HostPort": "443" }, { "HostIp": "::", "HostPort": "443" } ], "5432/tcp": [ { "HostIp": "0.0.0.0", "HostPort": "5432" }, { "HostIp": "::", "HostPort": "5432" } ], "80/tcp": [ { "HostIp": "0.0.0.0", "HostPort": "80" }, { "HostIp": "::", "HostPort": "80" } ] }, "SandboxKey": "/var/run/docker/netns/904f1f845cd2", "SecondaryIPAddresses": null, "SecondaryIPv6Addresses": null, "EndpointID": "", "Gateway": "", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "IPAddress": "", "IPPrefixLen": 0, "IPv6Gateway": "", "MacAddress": "", "Networks": { "traefik_traefik-network": { "IPAMConfig": { "IPv4Address": "10.0.2.4" }, "Links": null, "Aliases": [ "853176ebddfd" ], "NetworkID": "gre6shjq24dnp3lb20hajeyxl", "EndpointID": "532d9f9cc1d1127d4e03d5052054c7b96f8131c6b74e5d748bdf69323a7cacd5", "Gateway": "", "IPAddress": "10.0.2.4", "IPPrefixLen": 24, "IPv6Gateway": "", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "MacAddress": "02:42:0a:00:02:04", "DriverOpts": null } } } } ]As it's visible there is no Gateway assigned inside of the traefik container. Every other container regardless of node role also has none.
I already
The nodes are connected through an external IP address
Can anybody please tell me how to work around this issue?
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