change file names & create coredns.md

Flossertoday · Jul 19, 2021 · 2a7587c · 2a7587c
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diff --git a/Internet.md → Host_VM_Intranet.md b/Internet.md → Host_VM_Intranet.md
diff --git a/coredns.md b/coredns.md
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+## Error Msg
+Run 
+
+    kubeadm init --apiserver-advertise-address=192.168.1.140 --image-repository=registry.aliyuncs.com/google_containers --pod-network-cidr=10.244.0.0/16  --ignore-preflight-errors=Swap
+
+Found
+
+    [ERROR ImagePull]: failed to pull image registry.aliyuncs.com/google_containers/coredns:v1.8.0: output: Error response from daemon: manifest for registry.aliyuncs.com/google_containers/coredns:v1.8.0 not found: manifest unknown: manifest unknown
+
+
+## What Happended
+Docker images source has only coredns:1.8.0 but coredns:v1.8.0 was required. 
+
+This might indicate a typo somewhere in some config file, but this solution will only work on how to get around this error. 
+
+## The Plan
+Pull this image manually from source, then retag this image to the required tag. 
+
+The required tag can be found in the Error Message. 
+
+Reset kubenetes first,
+
+    kubeadm reset
+    rm $HOME/.kube/config
+
+Then,
+
+    docker pull coredns/coredns:1.8.0
+    docker tag coredns/coredns:1.8.0 registry.aliyuncs.com/google_containers/coredns:v1.8.0
+    docker images
+
+Then initialize kubeadm again,
+
+    kubeadm init --apiserver-advertise-address=192.168.1.140 --image-repository=registry.aliyuncs.com/google_containers --pod-network-cidr=10.244.0.0/16  --ignore-preflight-errors=Swap
+
+You should be good to go now. 
+
+## Other useful commands
+How to remove docker images
+
+https://stackoverflow.com/questions/32723111
+https://stackoverflow.com/questions/44785585
diff --git a/repos.md → yum.repos.d.md b/repos.md → yum.repos.d.md