MicroShift with Containerd

gistfile1.txt

First of all remove CRIO (if installed) and install Containerd:

 sudo dnf remove crio
 sudo dnf install containerd
 sudo mkdir -p /etc/containerd
 containerd config default | sudo tee /etc/containerd/config.toml
 sudo systemctl restart containerd
 sudo systemctl status containerd
 
 Install CNI plugins:
 
 wget https://github.com/containernetworking/plugins/releases/download/v1.1.1/cni-plugins-linux-amd64-v1.1.1.tgz
 mkdir -p /opt/cni/bin
 tar Cxzvf /opt/cni/bin cni-plugins-linux-amd64-v1.1.1.tgz
 sudo systemctl restart containerd
 
 You need to apply this patch to MicroShift project:
 
 diff --git a/pkg/node/kubelet.go b/pkg/node/kubelet.go
index 5598c2f0..a13ca2eb 100644
--- a/pkg/node/kubelet.go
+++ b/pkg/node/kubelet.go
@@ -75,10 +75,9 @@ func (s *KubeletServer) configure(cfg *config.MicroshiftConfig) {
        cleanFlagSet.SetNormalizeFunc(cliflag.WordSepNormalizeFunc)
 
        kubeletFlags := kubeletoptions.NewKubeletFlags()
-       kubeletFlags.RuntimeCgroups = "/system.slice/crio.service"
        kubeletFlags.NodeIP = cfg.NodeIP
        kubeletFlags.ContainerRuntime = "remote"
-       kubeletFlags.RemoteRuntimeEndpoint = "unix:///var/run/crio/crio.sock"
+       kubeletFlags.RemoteRuntimeEndpoint = "unix:///run/containerd/containerd.sock"
 
        kubeletConfig, err := loadConfigFile(cfg.DataDir + "/resources/kubelet/config/config.yaml")
        
 Let's compile MicroShift:
 
 make build
 
 Now run MicroShift:
 
 sudo ./microshift run 2>&1 | tee logs.txt
 
 From another terminal (I did this as root):
 export KUBECONFIG=/var/lib/microshift/resources/kubeadmin/kubeconfig
 oc get pods -A