Rework the kubelet.sh script by adding an explicit step which waits for the
configuration to be valid, either by finding appropriate metadata or by waiting
explicitly for kubelet.conf to be created (e.g. by kubeadm) before launching
kubelet. The previous construct was implicitly waiting for kubelet.conf to be
created since kubelet fails if that file is not present.
Pull the set of start of day yaml files to be applied (currently just weave)
out of the kubelet image and into the LinuxKit yaml by providing a directory
which is searched for *.yaml after init.
Signed-off-by: Ian Campbell <ijc@docker.com>
With the master tailoring for docker now being in docker-master.yml,
kube-master and kube-node are identical, so just use a single kube.yml.
The reference to kube-master.yml in README.md is obsolete, so just drop it.
Signed-off-by: Ian Campbell <ijc@docker.com>
Because Kubernetes is 1.5GB, ISO makes sense as the files do not
take up memory, so you can boot a 1GB machine rather than a 4GB one.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
This updates the build of the two image caches to use the `pkg/package.mk`
infrastructure, albeit in a slightly (ok, very) atypical way.
In order to share the bulk of the build code (including the `Dockerfile` and
the `Makefile` machinery to download the images) we arrange for the necessary
bits to be copied at build time into distinct subdirectories and for the
`pkg/package.mk` to be aware of this possibility.
Since pkg/package.mk is only set up to build a single package we use a single
`image-cache/Makefile` to drive the whole process and recurse into
`Makefile.pkg` to build individual packages.
One particular subtlety is that the package hash is based on the `image-cache`
directory (which is in `git`) rather than the generated subdirectories (which
are not in `git`). Since all the generators (and their inputs) are in the
`image-cache` directory this is what we want. This means that the two images
are given the same tag, but this is deliberate and desirable.
The generated directories are completely temporary to avoid picking up stale
versions of images when versions are updated. Images are hardlinked into place.
The images are moved to the linuxkitprojects org. Using a dev tag for now, will
update once everything is in place.
Also use "tag" rather than "build" where appropriate in the Makefile.
There is no point in the .dockerignore now, but add a .gitignore.
Signed-off-by: Ian Campbell <ijc@docker.com>
It doesn't support it. This makes "make cache-images" work. Previously it would
fail with various:
Error: remote trust data does not exist for gcr.io/google_containers/pause-amd64: gcr.io does not have trust data for gcr.io/google_containers/pause-amd64
Signed-off-by: Ian Campbell <ijc@docker.com>
This is a pretty straight port of the previous box stuff, without much attempt
to clean things up.
Image label is a placeholder, will update once a batch of changes are complete.
Signed-off-by: Ian Campbell <ijc@docker.com>
Apart from the /var/lib mount itself the custom package:
- Made host /etc/cni and /opt/cni rshared. This has been handled by init make /
rshared since 3c326bebdf ("Make / rshared").
- Make /var/lib/kubeadm after mount. For now handle this with a dedicated start
of day container instead.
Signed-off-by: Ian Campbell <ijc@docker.com>
For the time being I've decided to exploit shared mounts to make
`/opt/cni` and `/etc/cni` work as expected. We need these directories
to appear writable on the host, and allow Weave Net pod to bind-mount
out them in order to install plugin binaries, and allow for vanilla
CNI plugins to be also accessible to kubelet.
Signed-off-by: Ilya Dmitrichenko <errordeveloper@gmail.com>
