25 lines
911 B
ReStructuredText
25 lines
911 B
ReStructuredText
=======================
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Keep Containers Alive
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=======================
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As we know, the Docker daemon shuts down all running containers
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during daemon downtime. Starting with Docker Engine 1.12, users can
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configure the daemon so that containers remain running when the
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docker service becomes unavailable. This functionality is called
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live restore. You can read more about Live Restore
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`here <https://docs.docker.com/config/containers/live-restore>`_.
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Installation with DevStack
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==========================
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It is possible to keep containers alive. Follow the
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:doc:`/contributor/quickstart` to download DevStack, Zun code and copy the
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local.conf file. Now perform the following steps to install Zun with DevStack::
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cd /opt/stack/devstack
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echo "ENABLE_LIVE_RESTORE=true" >> local.conf
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./stack.sh
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Verify the installation by::
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$ sudo docker info | grep "Live Restore"
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Live Restore Enabled: true
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