deskjas.blogg.se - The artifacts of power download

All the Artifact scripts are prefixed with Artifact. The Artifact scripts are part of the Artifact and are delivered to the Client inside the Artifact. The default locationįor those scripts is /etc/mender/scripts. The root filesystems scripts are stored as a part of the current root filesystem. There are two types of the state scripts: root filesystem and Artifact. These are the states that are executed in standalone mode: If Mender is used in standalone mode (installing via command line), some states are omitted from execution because Mender is not running as a daemon. Most of the states also have an "Error" transition which is run when some error occurs while executing any action inside the given state (including execution of Enter and Leave scripts). State scripts can either be run as we transition into a state "Enter", or out from a state, "Leave". This state always runs after the ArtifactRollback and ArtifactRollbackReboot states.

ArtifactFailure: if any of the "Artifact" states are failing, the device enters and executes this state.

ArtifactRollbackReboot: if we need to reboot the device after performing rollback.

ArtifactRollback: if the new update is broken and we need to go back to the previous one.

ArtifactCommit: device is up and running after rebooting, and the commit makes the update persistent.

The Enter actions run before the reboot the Leave actions run after. Not all Artifact types do, but rootfs-image Artifacts will always reboot.

ArtifactReboot: runs if the Artifact being installed requires a reboot.

ArtifactInstall: the Artifact is being installed.

Download: there is an update for the given device and a new Artifact is downloaded.

Sync: communication with the server is needed (currently while checking if there is an update for the given device and when inventory data is sent to server).

Idle: this is a state where no communication with the server is needed nor is there any update in progress.

Starting with the Mender Client version 1.2, support is available for scripts to be run before and after nine different states:

For some examples of usage, see example use cases. However, Mender state scripts are more general and useful than pre/postinstall scripts because they can be run between any state transition, not just (before/after) the install state. The Mender Client has the ability to run pre- and postinstall scripts, before and after it writes the root filesystem. How to make an apply-device-config script.

Production installation with Kubernetes.

Server-side generation of Delta Artifacts.

Combining Operating System and Application updates.

Create an Artifact with system snapshot.