mirror of
https://github.com/checkpoint-restore/criu
synced 2025-08-28 21:07:43 +00:00
e936a0f8ad
The following error occurs when creating a checkpoint of a container immediately after the container has been restored from another checkpoint. Error response from daemon: Cannot checkpoint container cr: content sha256:12c69b7a9d25695dd5f9d37d4e858e2f7c3f9da738ccf86f8d3042f6973af1df: already exists In this patch we add a healthcheck to the test container and update the test to perform a checkpoint only when the container is in a 'healthy' state. In addition, this patch adds a scenario to test the checkpoint/restore of multiple containers. Signed-off-by: Radostin Stoyanov <rstoyanov@fedoraproject.org>
130 lines
2.7 KiB
Bash
Executable File
130 lines
2.7 KiB
Bash
Executable File
#!/bin/bash
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# shellcheck disable=SC1091,SC2015
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set -x -e -o pipefail
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./apt-install \
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apt-transport-https \
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ca-certificates \
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curl \
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software-properties-common
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curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
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add-apt-repository \
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"deb [arch=amd64] https://download.docker.com/linux/ubuntu \
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$(lsb_release -cs) \
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stable test"
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./apt-install docker-ce
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. /etc/lsb-release
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echo '{ "experimental": true }' > /etc/docker/daemon.json
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CRIU_LOG='/criu.log'
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mkdir -p /etc/criu
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echo "log-file=$CRIU_LOG" > /etc/criu/runc.conf
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service docker stop
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systemctl stop containerd.service
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# Always use the latest containerd release.
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# Restore with containerd versions after v1.2.14 and before v1.5.0-beta.0 are broken.
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# https://github.com/checkpoint-restore/criu/issues/1223
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CONTAINERD_DOWNLOAD_URL=$(curl -s https://api.github.com/repos/containerd/containerd/releases/latest | grep '"browser_download_url":.*/containerd-.*-linux-amd64.tar.gz.$' | cut -d\" -f4)
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wget -nv "$CONTAINERD_DOWNLOAD_URL" -O - | tar -xz -C /usr/
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systemctl restart containerd.service
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service docker restart
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export SKIP_CI_TEST=1
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./run-ci-tests.sh
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cd ../../
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make install
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docker info
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criu --version
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run_container () {
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docker run \
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--tmpfs /tmp \
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--tmpfs /run \
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--read-only \
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--name cr \
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--health-cmd='sleep 1' \
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--health-interval=1s \
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-d \
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alpine \
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/bin/sh -c 'i=0; while true; do echo $i; i=$(expr $i + 1); sleep 1; done'
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}
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wait_running () {
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until [ "$(docker inspect -f '{{.State.Running}}' cr)" = "true" ]; do
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sleep 1;
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done;
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}
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wait_healthy () {
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until [ "$(docker inspect -f '{{.State.Health.Status}}' cr)" = "healthy" ]; do
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sleep 1;
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done;
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}
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checkpoint_container () {
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CHECKPOINT_NAME=$1
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docker checkpoint create cr "$CHECKPOINT_NAME" &&
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(docker exec cr true >> /dev/null 2>&1 && exit 1 || exit 0) &&
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# wait for container to stop
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docker wait cr
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}
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restore_container () {
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CHECKPOINT_NAME=$1
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docker start --checkpoint "$CHECKPOINT_NAME" cr 2>&1 | tee log || {
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cat "$(grep log 'log file:' | sed 's/log file:\s*//')" || true
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docker logs cr || true
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cat $CRIU_LOG || true
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dmesg
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docker ps
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exit 1
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}
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}
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# Scenario: Create multiple containers and checkpoint and restore them once
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for i in $(seq 10); do
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run_container
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wait_running
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docker ps
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checkpoint_container checkpoint
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docker ps
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restore_container checkpoint
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docker ps
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docker rm -f cr
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done
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# Scenario: Create container and checkpoint and restore it multiple times
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run_container
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wait_running
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for i in $(seq 5); do
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docker ps
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checkpoint_container checkpoint"${i}"
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docker ps
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restore_container checkpoint"${i}"
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# Wait for healthy state before creating another checkpoint
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wait_healthy
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done
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