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Merge pull request #3 from Burnett01/feat/support-key-with-passphrase

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feat: Add support for SSH keys with passphrases.
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Joshua Piper 2021-08-02 18:43:25 +01:00 committed by GitHub
commit f63e2c405d
4 changed files with 18 additions and 4 deletions
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3
Dockerfile
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@ -9,8 +9,7 @@ RUN rm -rf /var/cache/apk/*
RUN mkdir ~/.ssh RUN mkdir ~/.ssh
# Copy in our executables. # Copy in our executables.
COPY agent-start agent-stop agent-add agent-autostart /bin/ COPY agent-* hosts-* /bin/
COPY hosts-clear hosts-add /bin/
RUN chmod +x /bin/agent-* /bin/hosts-* RUN chmod +x /bin/agent-* /bin/hosts-*
# Prepare for known hosts. # Prepare for known hosts.

15
README.md
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@ -41,10 +41,15 @@ It takes one optional argument, for the name of the agent to be stopped. Default
#### agent-add #### agent-add
This command adds a key to the currently running SSH agent. The key is taken from stdin, and the agent used is that in SSH_AGENT_PID. This command adds a key to the currently running SSH agent. The key is taken from stdin, and the agent used is that in SSH_AGENT_PID.
#### agent-autoadd #### agent-autostart
This command starts the SSH agent and loads the private key from the "SSH_PRIVATE_KEY" environment var. The command takes one optional argument, for the name of the agent to be started. Defaults to "default". This command starts the SSH agent and loads the private key from the "SSH_PRIVATE_KEY" environment var. The command takes one optional argument, for the name of the agent to be started. Defaults to "default".
As with agent-start, this command needs to be sourced. As with agent-start, this command needs to be sourced.
#### agent-askpass
This command is called by ssh-add when the [SSH_ASKPASS](https://man.openbsd.org/ssh-add.1#ENVIRONMENT) variable is set active. The command returns the SSH_PASS to [ssh-askpass(1)](https://man.openbsd.org/ssh-askpass.1).
This command is ignored by ssh-add if the key does not require a passphrase.
### known_hosts management ### known_hosts management
#### hosts-clear #### hosts-clear
This command truncates the known_hosts file and sets its permissions. This command truncates the known_hosts file and sets its permissions.
@ -78,3 +83,11 @@ deploy:
script: script:
- rsync -zrSlhaO --chmod=D2775,F664 --delete-after . $FTP_USER@$FTP_HOST:/var/www/deployment/ - rsync -zrSlhaO --chmod=D2775,F664 --delete-after . $FTP_USER@$FTP_HOST:/var/www/deployment/
``` ```
## Using with passphrase protected key
You can supply a passphrase with ``SSH_PASS`` to ``agent-add``, ``agent-start`` or ``agent-autostart``.
```
SSH_PASS="THE_PASSPHRASE" agent-add
```

2
agent-add
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@ -1,4 +1,4 @@
#!/bin/sh #!/bin/sh
source agent-start "${1:-default}" source agent-start "${1:-default}"
cat - | tr -d '\r' | ssh-add - >/dev/null cat - | tr -d '\r' | DISPLAY=1 SSH_ASKPASS=agent-askpass ssh-add - >/dev/null

2
agent-askpass Normal file
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@ -0,0 +1,2 @@
#!/bin/sh
echo "$SSH_PASS"