mirror of
https://github.com/checkpoint-restore/criu.git
synced 2026-01-23 02:14:37 +00:00
37d62fa475
Checkpoint/restore with version 25.0.0-beta.1 fails with the following error: $ docker start --checkpoint=c1 cr Error response from daemon: failed to create task for container: content digest fdb1054b00a8c07f08574ce52198c5501d1f552b6a5fb46105c688c70a9acb45: not found: unknown Release notes: https://github.com/moby/moby/discussions/46816 Signed-off-by: Radostin Stoyanov <rstoyanov@fedoraproject.org>
140 lines
3.2 KiB
Bash
Executable file
140 lines
3.2 KiB
Bash
Executable file
#!/bin/bash
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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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$(lsb_release -cs) \
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stable test"
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# checkpoint/restore is broken in Docker Engine (Community) version 25.0.0-beta.1
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# https://github.com/moby/moby/discussions/46816
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# Downgrade to the latest stable version.
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VERSION_STRING=5:24.0.7-1~ubuntu.20.04~focal
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./apt-install docker-ce=$VERSION_STRING docker-ce-cli=$VERSION_STRING containerd.io docker-buildx-plugin docker-compose-plugin
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# docker checkpoint and restore is an experimental feature
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echo '{ "experimental": true }' > /etc/docker/daemon.json
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service docker restart
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CRIU_LOG='/criu.log'
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mkdir -p /etc/criu
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echo "log-file=$CRIU_LOG" > /etc/criu/runc.conf
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# Test checkpoint/restore with action script
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echo "action-script /usr/bin/true" | sudo tee /etc/criu/default.conf
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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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print_logs () {
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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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declare -i max_restore_container_tries=3
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restore_container () {
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CHECKPOINT_NAME=$1
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for i in $(seq $max_restore_container_tries); do
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docker start --checkpoint "$CHECKPOINT_NAME" cr 2>&1 | tee log && break
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# FIXME: There is a race condition in docker/containerd that causes
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# docker to occasionally fail when starting a container from a
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# checkpoint immediately after the checkpoint has been created.
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# https://github.com/moby/moby/issues/42900
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if grep -Eq '^Error response from daemon: failed to upload checkpoint to containerd: commit failed: content sha256:.*: already exists$' log; then
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echo "Retry container restore: $i/$max_restore_container_tries"
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sleep 1;
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else
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print_logs
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fi
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done
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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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