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Add a much faster container replacement for livepush

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Change-type: patch
Signed-off-by: Cameron Diver <cameron@balena.io>
This commit is contained in:
Cameron Diver 2019-05-27 13:19:14 +01:00
parent 39cf86ed85
commit 106b971410
1 changed files with 5 additions and 17 deletions
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22
lib/utils/device/live.ts
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@ -337,24 +337,12 @@ export class LivepushManager {
return;
}
// TODO: The code below is quite roundabout, and instead
// we'd prefer just to call a supervisor endpoint which
// recreates a container, but that doesn't exist yet
// First we request the current target state
// Let's first delete the container from the device
const containerId = await this.api.getContainerId(serviceName);
await this.docker.getContainer(containerId).remove({ force: true });
const currentState = await this.api.getTargetState();
// Then we generate a target state without the service
// we rebuilt
const comp = _.cloneDeep(this.composition);
delete comp.services[serviceName];
const intermediateState = generateTargetState(currentState, comp, {});
await this.api.setTargetState(intermediateState);
// Now we wait for the device state to settle
await this.awaitDeviceStateSettle();
// And re-set the target state
// If we re-apply the target state, the supervisor
// should recreate the container
await this.api.setTargetState(
generateTargetState(currentState, this.composition, {}),
);