Host networking: High CPU and memory usage which eventually crashes docker.

[mliudev]

Original issue #214673 described similar behavior as mine.
These vscode-server/bin processes seem to be infinitely spinning up until OOM.

Originally posted by @mliudev in microsoft/vscode#214673 (comment)

devcontainer.json

// For format details, see https://aka.ms/devcontainer.json. For config options, see the
// README at: https://github.com/devcontainers/templates/tree/main/src/typescript-node
{
    "name": "Node.js & TypeScript",
    // Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
    "image": "mcr.microsoft.com/devcontainers/typescript-node:20",
    "runArgs": ["--network=host"],
    "postCreateCommand": "git config --global --add safe.directory /workspaces/Playground",
    "customizations": {
        "vscode": {
            "extensions": [
                "esbenp.prettier-vscode",
                "dbaeumer.vscode-eslint",
                "ionutvmi.path-autocomplete",
                "github.vscode-github-actions",
                "ms-azuretools.vscode-docker",
                "clinyong.vscode-css-modules",
                "eamodio.gitlens"
            ],
            "settings": {
                "typescript.tsdk": "node_modules/typescript/lib",
                "typescript.enablePromptUseWorkspaceTsdk": true,
                "typescriptreact.preferGoToSourceDefinition": true,
                "[scss]": {
                    "editor.defaultFormatter": "esbenp.prettier-vscode"
                },
                "remote.localPortHost": "allInterfaces",
                "cssModules.pathAlias": {
                    "@/common": "${workspaceFolder}/src/common",
                    "@/app/(app)": "${workspaceFolder}/src/app"
                },
                "search.exclude": {
                    "**/.git": true,
                    "**/.svn": true,
                    "**/.hg": true,
                    "**/CVS": true,
                    "**/.DS_Store": true,
                    "**/Thumbs.db": true,
                    ".next": true,
                    "node_modules": true
                }
            }
        }
    },
    "features": {
        "ghcr.io/devcontainers-contrib/features/firebase-cli:2": {}
    }
}

[mliudev]

Related to #9996 and #9821.

[mliudev]

Some more info is that there appears to be an infinite loop of port forwarding. Not sure what this port is being forwarded for:

devcontainer log

[21274 ms] Port forwarding 52905 > 58319 > 58319 stderr: Connection established
[21282 ms] Port forwarding connection from 52907 > 58319 > 58319 in the container.
[21282 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[21358 ms] Port forwarding 52907 > 58319 > 58319 stderr: Connection established
[21377 ms] Port forwarding connection from 52909 > 58319 > 58319 in the container.
[21377 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[21442 ms] Port forwarding 52909 > 58319 > 58319 stderr: Connection established
[21452 ms] Port forwarding connection from 52911 > 58319 > 58319 in the container.
[21452 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[21597 ms] Port forwarding 52911 > 58319 > 58319 stderr: Connection established
[21608 ms] Port forwarding connection from 52913 > 58319 > 58319 in the container.
[21608 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[21706 ms] Port forwarding 52913 > 58319 > 58319 stderr: Connection established
[21716 ms] Port forwarding connection from 52916 > 58319 > 58319 in the container.
[21716 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[21769 ms] Port forwarding 52916 > 58319 > 58319 stderr: Connection established
[21801 ms] Port forwarding connection from 52918 > 58319 > 58319 in the container.
[21801 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[21903 ms] Port forwarding 52918 > 58319 > 58319 stderr: Connection established
[21911 ms] Port forwarding connection from 52924 > 58319 > 58319 in the container.
[21911 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[21988 ms] Port forwarding 52924 > 58319 > 58319 stderr: Connection established
[21995 ms] Port forwarding connection from 52926 > 58319 > 58319 in the container.
[21996 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[22063 ms] Port forwarding 52926 > 58319 > 58319 stderr: Connection established
[22075 ms] Port forwarding connection from 52928 > 58319 > 58319 in the container.
[22075 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[22145 ms] Port forwarding 52928 > 58319 > 58319 stderr: Connection established
[22155 ms] Port forwarding connection from 52930 > 58319 > 58319 in the container.
[22155 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[22253 ms] Port forwarding 52930 > 58319 > 58319 stderr: Connection established
[22333 ms] Port forwarding connection from 52932 > 58319 > 58319 in the container.
[22333 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[22417 ms] Port forwarding 52932 > 58319 > 58319 stderr: Connection established
[22422 ms] Port forwarding connection from 52934 > 58319 > 58319 in the container.
[22423 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[22514 ms] Port forwarding 52934 > 58319 > 58319 stderr: Connection established
[22523 ms] Port forwarding connection from 52936 > 58319 > 58319 in the container.
[22523 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[22634 ms] Port forwarding 52936 > 58319 > 58319 stderr: Connection established
[22639 ms] Port forwarding connection from 52938 > 58319 > 58319 in the container.
[22640 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[22701 ms] Port forwarding 52938 > 58319 > 58319 stderr: Connection established
[22707 ms] Port forwarding connection from 52940 > 58319 > 58319 in the container.
[22708 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[22765 ms] Port forwarding 52940 > 58319 > 58319 stderr: Connection established
[22773 ms] Port forwarding connection from 52942 > 58319 > 58319 in the container.
[22773 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[22856 ms] Port forwarding 52942 > 58319 > 58319 stderr: Connection established
[22907 ms] Port forwarding connection from 52948 > 58319 > 58319 in the container.
[22908 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[22973 ms] Port forwarding 52948 > 58319 > 58319 stderr: Connection established
[22979 ms] Port forwarding connection from 52950 > 58319 > 58319 in the container.
[22979 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[23034 ms] Port forwarding 52950 > 58319 > 58319 stderr: Connection established
[23043 ms] Port forwarding connection from 52952 > 58319 > 58319 in the container.
[23043 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 
[23146 ms] Port forwarding 52952 > 58319 > 58319 stderr: Connection established
[23157 ms] Port forwarding connection from 52954 > 58319 > 58319 in the container.
[23157 ms] Start: Run in container: /root/.vscode-server/bin/4849ca9bdf9666755eb463db297b69e5385090e3/node -e 

[chrmarti]

Not sure how this gets triggered, but removing "runArgs": ["--network=host"], from the config probably works around it. Could you try that?

Does the Ports view show a port being forwarded?

Could you append the full log?

[mliudev]

Is the --network=host not necessary? We actually do want the docker container to have host networking. If it happens again I'll try to get the full log but it happens intermittently.

[mliudev]

Also, how exactly do I open the DevContainer logs if I miss the notification? It doesn't look like I can go to Output and select it as one of the logs.