docs/datacenter/ucp/3.0/guides/interlock/ops/index.md

title	description	keywords	ui_tabs
Update Interlock	Learn about Interlock, an application routing and load balancing system for Docker Swarm.	ucp, interlock, load balancing	version orhigher ucp-3.0 false

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The following describes how to update Interlock. There are two parts to the upgrade. First, the Interlock configuration must be updated to specify the new extension and/or proxy image versions. Then the Interlock service will be updated.

First we will create the new configuration:

$> docker config create service.interlock.conf.v2 <path-to-new-config>

Then you can update the Interlock service to remove the old and use the new:

$> docker service update --config-rm service.interlock.conf interlock
$> docker service update --config-add source=service.interlock.conf.v2,target=/config.toml interlock

Next update the Interlock service to use the new image:

$> docker service update \
    --image interlockpreview/interlock@sha256:d173014908eb09e9a70d8e5ed845469a61f7cbf4032c28fad0ed9af3fc04ef51 \
    interlock

This will update the Interlock core service to use the sha256:d173014908eb09e9a70d8e5ed845469a61f7cbf4032c28fad0ed9af3fc04ef51 version of Interlock. Interlock will start and check the config object which has the new extension version and will perform a rolling deploy to update all extensions.

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