Verified Commit 62dc2bcf authored by anarcat's avatar anarcat
Browse files

fix reboot-host task name

parent e1d1f723

howto/ganeti.md

+6 −6
Original line number Diff line number Diff line
@@ -1313,11 +1313,11 @@ This command will reboot the entire Ganeti fleets, including the 
hosted VMs, use this when (for example) you have kernel upgrades to

deploy everywhere:



    fab -H $(echo fsn-node-0{1,2,3,4,5,6,7,8}.torproject.org | sed 's/ /,/g') reboot-host --no-ganeti-migrate

    fab -H $(echo fsn-node-0{1,2,3,4,5,6,7,8}.torproject.org | sed 's/ /,/g') fleet.reboot-host --no-ganeti-migrate



In parallel, you can probably also run:



    fab -H $(echo dal-node-0{1,2,3}.torproject.org | sed 's/ /,/g') reboot-host --no-ganeti-migrate

    fab -H $(echo dal-node-0{1,2,3}.torproject.org | sed 's/ /,/g') fleet.reboot-host --no-ganeti-migrate



Watch out for nodes that hold redundant mirrors however.
@@ -1330,7 +1330,7 @@ Note that you can cancel a node reboot with `--kind` cancel. For 
example, say you were currently rebooting node `fsn-node-05`, you can

hit <kbd>control-c</kbd> and do:



    fab -H fsn-node-05.torproject.org reboot-host --kind=cancel

    fab -H fsn-node-05.torproject.org fleet.reboot-host --kind=cancel



... to cancel the reboot of the node and its instances. This can be

done when the following message is showing:
@@ -1346,7 +1346,7 @@ need a reboot, and not the instances. In that case, you want to reboot 
the nodes but before that, migrate the instances off the node and then

migrate it back when done. This incantation should do so:



    fab -H $(echo fsn-node-0{1,2,3,4,5,6,7,8}.torproject.org | sed 's/ /,/g') reboot-host --reason 'Open vSwitch upgrade'

    fab -H $(echo fsn-node-0{1,2,3,4,5,6,7,8}.torproject.org | sed 's/ /,/g') fleet.reboot-host --reason 'Open vSwitch upgrade'



This should cause no user-visible disruption.
@@ -1361,7 +1361,7 @@ upgraded, for example `libxml` or OpenSSL. 
This will only migrate the VMs without rebooting the hosts:



    fab -H $(echo fsn-node-0{1,2,3,4,5,6,7,8}.torproject.org | sed 's/ /,/g') \

       reboot-host --kind=cancel --reason 'qemu flagged in needrestart'

       fleet.reboot-host --kind=cancel --reason 'qemu flagged in needrestart'



This should cause no user-visible disruption, as it migrates all the

VMs around and back.
@@ -1373,7 +1373,7 @@ If you actually need to restart the instances in place (and not 
migrate them), you need to use the `--skip-ganeti-empty` flag instead:



    fab -H $(echo dal-node-0{1,2,3}.torproject.org | sed 's/ /,/g') \

        reboot-host --skip-ganeti-empty --kind=cancel --reason 'qemu flagged in needrestart'

        fleet.reboot-host --skip-ganeti-empty --kind=cancel --reason 'qemu flagged in needrestart'



## Rebalancing a cluster