Setting Up a Git Repository on Kubernetes Nodes and Performing Basic Git Operations

1. System environment preparation

Install Git on both the master (192.168.20.40) and client (192.168.20.39) nodes:

[root@k8s-master ~]# yum -y install git

[root@k8s-node3 ~]# yum -y install git

2. Create a bare Git repository on the master

Create a directory, add a dedicated user, set ownership, and initialize a bare repository:

[root@k8s-master ~]# mkdir merge.git

[root@k8s-master ~]# useradd git

[root@k8s-master ~]# passwd git

[root@k8s-master ~]# chown -Rf git:git merge.git

[root@k8s-master ~]# cd merge.git/

[root@k8s-master merge.git]# git --bare init

The repository is now ready for SSH access.

3. Configure SSH keys and clone the repository

On the client node generate an SSH key pair and copy the public key to the master:

[root@k8s-node3 ~]# ssh-keygen

[root@k8s-node3 ~]# ssh-copy-id 192.168.20.40

Clone the empty repository:

[root@k8s-node3 ~]# git clone [email protected]:/root/merge.git

Configure global Git user information:

[root@k8s-node3 ~]# git config --global user.name "hahashen"

[root@k8s-node3 ~]# git config --global user.email [email protected]

[root@k8s-node3 ~]# git config --global core.editor vim

4. Basic Git workflow (add, commit, status, diff)

Create a file and add it to the staging area:

[root@k8s-node3 ~]# cd merge/

[root@k8s-node3 merge]# echo "hahashen update" > index.html

[root@k8s-node3 merge]# git add index.html

Modify the file after staging: [root@k8s-node3 merge]# echo "please tell me " >> index.html Commit the staged changes: [root@k8s-node3 merge]# git commit -m "add the index file" Check repository status: [root@k8s-node3 merge]# git status View differences between the working file and the last commit: [root@k8s-node3 merge]# git diff index.html After further edits, add and commit again:

[root@k8s-node3 merge]# git add index.html

[root@k8s-node3 merge]# git commit -m "added update"

5. Push the local commits to the remote repository

Define the remote server and push the master branch:

[root@k8s-node3 merge]# git remote add server [email protected]:/root/merge.git

[root@k8s-node3 merge]# git push -u server master

The push operation counts, compresses, and writes objects, creating the remote master branch that tracks the local master.