Make the KWASM_DIR value configurable via env vars
Bump containerd/runwasi runtimes to v0.4.0
Rely on $PATH to discover the systemctl binary location
The motivation of this PR is to make the script also able to provision GKE nodes using the cos_containerd image. Such image has many partitions mounted with ro or noexec or both. For example, the default /opt/kwasm dir would land on
/dev/mapper/vroot on / type ext2 (ro,relatime)
so the dir could never be created. However there are other partitions where users can read and execute. This PR adds the ability to pass in a custom KWASM_DIR value where things will be installed in the hosts.
I'm also bumping some versions to the latest release and also relying on the $PATH env var to discover the systemctl location rather than passing a full path. Turns out in nodes running cos_containerd the binary lives in /usr/bin/systemctl. In this decision I'm assuming $PATH is always correctly set in RKE and any other K8s distribution. I think it's a pretty safe assumption to make but happy to code a specific GKE case if needed.
In this PR:
KWASM_DIRvalue configurable via env varscontainerd/runwasiruntimes tov0.4.0$PATHto discover thesystemctlbinary locationThe motivation of this PR is to make the script also able to provision GKE nodes using the
cos_containerdimage. Such image has many partitions mounted withroornoexecor both. For example, the default/opt/kwasmdir would land onso the dir could never be created. However there are other partitions where users can read and execute. This PR adds the ability to pass in a custom
KWASM_DIRvalue where things will be installed in the hosts.I'm also bumping some versions to the latest release and also relying on the
$PATHenv var to discover thesystemctllocation rather than passing a full path. Turns out in nodes runningcos_containerdthe binary lives in/usr/bin/systemctl. In this decision I'm assuming$PATHis always correctly set in RKE and any other K8s distribution. I think it's a pretty safe assumption to make but happy to code a specific GKE case if needed.