Update linuxkit/init; Disable containerd CRI plugin (#293)

## Description


- Update linuxkit/init to the latest release. We were using an init container from a year ago. 
- Disable the CRI plugin for containerd. This is not needed for Linuxkit. The cri plugin is a Kubernetes thing. This removes warning and error messages that show up and have confused users as real issues.
- Add a config file (/etc/runtime-config.toml) for the init system to use when starting containerd. This will send logs to files.

Fixes: #

## How Has This Been Tested?





## How are existing users impacted? What migration steps/scripts do we need?





## Checklist:

I have:

- [ ] updated the documentation and/or roadmap (if required)
- [ ] added unit or e2e tests
- [ ] provided instructions on how to upgrade

Author: mergify[bot]

images/hook-containerd/Dockerfile

@@ -10,7 +10,7 @@ ENV CONTAINERD_REPO=https://github.com/containerd/containerd.git
 ENV CONTAINERD_COMMIT=v2.1.3
 ENV NERDCTL_VERSION=2.1.2
 ENV GOPATH=/go
-RUN apk add go=1.24.4-r0 git
+RUN apk add go=1.24.6-r0 git
 RUN mkdir -p $GOPATH/src/github.com/containerd && \
   cd $GOPATH/src/github.com/containerd && \
   git clone https://github.com/containerd/containerd.git && \

images/hook-containerd/etc/containerd/config.toml

@@ -3,7 +3,7 @@ version = 3
 root = '/var/lib/containerd'
 state = '/run/containerd'
 temp = ''
-disabled_plugins = []
+disabled_plugins = ["io.containerd.grpc.v1.cri","io.containerd.internal.v1.opt"]
 required_plugins = []
 oom_score = 0
 imports = []

images/hook-containerd/etc/containerd/runtime-config.toml

@@ -0,0 +1,4 @@
+# This file is used by linuxkit/init to configure the start up of containerd
+# https://github.com/linuxkit/linuxkit/blob/master/pkg/init/cmd/service/system_init.go
+stdout = "/var/log/containerd.out.log"
+stderr = "/var/log/containerd.err.log"

linuxkit-templates/hook.template.yaml

@@ -20,7 +20,7 @@ kernel:
 
 init:
   # this init container sha has support for volumes
-  - linuxkit/init:872d2e1be745f1acb948762562cf31c367303a3b
+  - linuxkit/init:v1.1.0
   - "${HOOK_CONTAINER_RUNC_IMAGE}"
   - "${HOOK_CONTAINER_CONTAINERD_IMAGE}"
   - linuxkit/ca-certificates:v1.0.0