+ SSH agent

+ Kubectl
changes in review description

ssh-agent-in-wsl.md

@@ -0,0 +1,29 @@
+# SSH agent in WSL
+
+There are a plenty of ways to enable the SSH agent in WSL to avoid the password ask at every connect to a remote host.
+
+One of them is the following.
+
+Add these lines to the ~/.profile file
+```
+ssh_pid=$(pidof ssh-agent)
+
+# If the agent is not running, start it, and save the environment to a file
+if [ "$ssh_pid" = "" ]; then
+        ssh_env="$(ssh-agent -s)"
+        echo "$ssh_env" | head -n 2 | tee ~/.ssh_agent_env > /dev/null
+init=1
+fi
+
+# Load the environment from the file
+if [ -f ~/.ssh_agent_env ]; then
+        eval "$(cat ~/.ssh_agent_env)"
+fi
+```
+
+After every start of WSL, add the key to the SSH agent and unlock it with the password. For example when starting the day, after WSL start
+`ssh-add ~/.ssh/id_ed25519`
+
+## todo
+- Add the ability to ask the key password on login
+- Store the SSH key between restarts (probably requires external packages)