docker / for-mac

Bug reports for Docker Desktop for Mac
https://www.docker.com/products/docker#/mac
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HostPort does not export port on node #7018

Open hmih opened 1 year ago

hmih commented 1 year ago

Description

A pod with HostNetwork and hostPort set will allocate a port on the host, but connectivity fails.

Reproduce

  1. docker for desktop with k8s enabled
  2. apply the following deployment:
apiVersion: v1
data:
  settings.yaml: |
    api:
      dashboard: true
      insecure: true
    log:
      level: DEBUG
    entryPoints:
      websecure:
        address: ":443"
    providers:
      file:
        directory: /etc/traefik/
kind: ConfigMap
metadata:
  name: settings
  resourceVersion: "648"
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: proxy
  labels:
    app.kubernetes.io/name: proxy
spec:
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/name: proxy
  template:
    metadata:
      labels:
        app.kubernetes.io/name: proxy
    spec:
      hostNetwork: true
      dnsPolicy: ClusterFirstWithHostNet
      containers:
        - name: main
          image: traefik:v3.0
          imagePullPolicy: Always
          ports:
            - name: https
              containerPort: 443
              hostPort: 443
              protocol: TCP
            - name: dashboard
              containerPort: 8080
              hostPort: 8080
              protocol: TCP
          volumeMounts:
            - name: settings
              mountPath: /etc/traefik/traefik.yaml
              subPath: settings.yaml
              readOnly: true
      volumes:
        - name: settings
          configMap:
            name: settings

When you try to open http://localhost:8080/dashboard/ it will show a connection error. Opening a shell in the running Pod and curl'ing the same URL will yield an HTML page result.

Expected behavior

The hostPort should be accessible and the page should render on :8080

docker version

Client:
 Cloud integration: v1.0.35+desktop.5
 Version:           24.0.6
 API version:       1.43
 Go version:        go1.20.7
 Git commit:        ed223bc
 Built:             Mon Sep  4 12:28:49 2023
 OS/Arch:           darwin/arm64
 Context:           desktop-linux

Server: Docker Desktop 4.24.0 (122432)
 Engine:
  Version:          24.0.6
  API version:      1.43 (minimum version 1.12)
  Go version:       go1.20.7
  Git commit:       1a79695
  Built:            Mon Sep  4 12:31:36 2023
  OS/Arch:          linux/arm64
  Experimental:     true
 containerd:
  Version:          1.6.22
  GitCommit:        8165feabfdfe38c65b599c4993d227328c231fca
 runc:
  Version:          1.1.8
  GitCommit:        v1.1.8-0-g82f18fe
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

docker info

Client:
 Version:    24.0.6
 Context:    desktop-linux
 Debug Mode: false
 Plugins:
  buildx: Docker Buildx (Docker Inc.)
    Version:  v0.11.2-desktop.5
    Path:     /Users/-/.docker/cli-plugins/docker-buildx
  compose: Docker Compose (Docker Inc.)
    Version:  v2.22.0-desktop.2
    Path:     /Users/-/.docker/cli-plugins/docker-compose
  dev: Docker Dev Environments (Docker Inc.)
    Version:  v0.1.0
    Path:     /Users/-/.docker/cli-plugins/docker-dev
  extension: Manages Docker extensions (Docker Inc.)
    Version:  v0.2.20
    Path:     /Users/-/.docker/cli-plugins/docker-extension
  init: Creates Docker-related starter files for your project (Docker Inc.)
    Version:  v0.1.0-beta.8
    Path:     /Users/-/.docker/cli-plugins/docker-init
  sbom: View the packaged-based Software Bill Of Materials (SBOM) for an image (Anchore Inc.)
    Version:  0.6.0
    Path:     /Users/-/.docker/cli-plugins/docker-sbom
  scan: Docker Scan (Docker Inc.)
    Version:  v0.26.0
    Path:     /Users/-/.docker/cli-plugins/docker-scan
  scout: Docker Scout (Docker Inc.)
    Version:  v1.0.7
    Path:     /Users/-/.docker/cli-plugins/docker-scout

Server:
 Containers: 43
  Running: 36
  Paused: 0
  Stopped: 7
 Images: 36
 Server Version: 24.0.6
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Using metacopy: false
  Native Overlay Diff: true
  userxattr: false
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Cgroup Version: 2
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: runc io.containerd.runc.v2
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 8165feabfdfe38c65b599c4993d227328c231fca
 runc version: v1.1.8-0-g82f18fe
 init version: de40ad0
 Security Options:
  seccomp
   Profile: unconfined
  cgroupns
 Kernel Version: 6.4.16-linuxkit
 Operating System: Docker Desktop
 OSType: linux
 Architecture: aarch64
 CPUs: 9
 Total Memory: 7.765GiB
 Name: docker-desktop
 ID: 58f6438f-6495-4f18-8245-00be77938fd0
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 HTTP Proxy: http.docker.internal:3128
 HTTPS Proxy: http.docker.internal:3128
 No Proxy: hubproxy.docker.internal
 Experimental: true
 Insecure Registries:
  hubproxy.docker.internal:5555
  127.0.0.0/8
 Live Restore Enabled: false

WARNING: daemon is not using the default seccomp profile

Diagnostics ID

3ACD9CE1-0725-47DF-9846-EEBEC1F425B0/20231006214852

Additional Info

No response

hmih commented 1 year ago

This is still broken but I have a workaround - I create a load balancer to allocate ports on localhost and done.