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28 lines
1014 B
Markdown
28 lines
1014 B
Markdown
## Using the system containerd
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Here is a simple example script that will run a container using the system containerd.
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You should run it from `/var` as the root filesystem is in RAM, and will use up memory.
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```bash
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#!/bin/sh
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NAME=nginx
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VERSION=latest
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docker pull ${NAME}:${VERSION}
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CONTAINER=$(docker create --net=host --security-opt apparmor=unconfined --cap-drop all --cap-add net_bind_service --oom-score-adj=-500 -v /var/log/nginx:/var/log/nginx -v /var/cache/nginx:/var/cache/nginx -v /var/run:/var/run ${NAME}:${VERSION})
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docker run -v ${PWD}:/conf -v /var/run/docker.sock:/var/run/docker.sock --rm jess/riddler -f -bundle /conf ${CONTAINER}
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rm -rf rootfs && mkdir rootfs
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docker export ${CONTAINER} | tar -C rootfs -xf -
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docker rm ${CONTAINER}
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mkdir -p /var/log/nginx /var/cache/nginx
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containerd-ctr containers start ${NAME} .
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containerd-ctr containers
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```
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For production, you will want to create the `config.json` offline and bundle it in with your
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init script, but you can create the rootfs online.
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