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Merge pull request #319 from marcov/docker-config

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dev-guide: detect & use existing docker unit file
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GabyCT 2019-01-07 13:40:43 -06:00 committed by GitHub
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11
Developer-Guide.md
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@ -389,14 +389,13 @@ $ script -fec 'sudo -E ${GOPATH}/src/github.com/kata-containers/tests/.ci/instal
# Run Kata Containers with Docker
## Update Docker configuration
## Update the Docker systemd unit file
```
$ dir=/etc/systemd/system/docker.service.d
$ file="$dir/kata-containers.conf"
$ sudo mkdir -p "$dir"
$ sudo test -e "$file" || echo -e "[Service]\nType=simple\nExecStart=\nExecStart=/usr/bin/dockerd -D --default-runtime runc" | sudo tee "$file"
$ sudo grep -q "kata-runtime=" $file || sudo sed -i 's!^\(ExecStart=[^$].*$\)!\1 --add-runtime kata-runtime=/usr/local/bin/kata-runtime!g' "$file"
$ dockerUnit=$(systemctl show -p FragmentPath docker.service | cut -d "=" -f 2)
$ unitFile=${dockerUnit:-/etc/systemd/system/docker.service.d/kata-containers.conf}
$ test -e "$unitFile" || { sudo mkdir -p "$(dirname $unitFile)"; echo -e "[Service]\nType=simple\nExecStart=\nExecStart=/usr/bin/dockerd -D --default-runtime runc" | sudo tee "$unitFile"; }
$ grep -q "kata-runtime=" $unitFile || sudo sed -i 's!^\(ExecStart=[^$].*$\)!\1 --add-runtime kata-runtime=/usr/local/bin/kata-runtime!g' "$unitFile"
$ sudo systemctl daemon-reload
$ sudo systemctl restart docker
```