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a206271460
* ssh-agent: lock this script with a mkdir style mutex This script is a kind of singleton pattern and is not reentrant. If several shells are oppened in a fast sequence, then several independent ssh-agents would be created, which is not acceptable. A mutex is required. Signed-off-by: Nuno Goncalves <nunojpg@gmail.com> * ssh-agent: only start agent if .ssh dir exists To use the same profile system-wide, it might happen that the .ssh directory does not exist (typically $HOME/.ssh/). This would trigger a error. Creating the directory would be a option, but it usually will not make sense to do so because it means the user doesn't have ssh keys or config. Signed-off-by: Nuno Goncalves <nunojpg@gmail.com> * ssh-agent: adds lazy option to disable key loading on start Option is documented on updated README.md Signed-off-by: Nuno Goncalves <nunojpg@gmail.com> * ssh-agent: simplify agent-forwarding checking Signed-off-by: Nuno Goncalves <nunojpg@gmail.com> Co-authored-by: Robby Russell <robby@planetargon.com>
70 lines
1.8 KiB
Markdown
70 lines
1.8 KiB
Markdown
# ssh-agent plugin
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This plugin starts automatically `ssh-agent` to set up and load whichever
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credentials you want for ssh connections.
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To enable it, add `ssh-agent` to your plugins:
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```zsh
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plugins=(... ssh-agent)
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```
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## Settings
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**IMPORTANT: put these settings _before_ the line that sources oh-my-zsh**
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To enable **agent forwarding support** add the following to your zshrc file:
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```zsh
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zstyle :omz:plugins:ssh-agent agent-forwarding on
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```
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To **NOT load any identities on start** use the `lazy` style.
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This is particularly usefull when combined with the AddKeysToAgent
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(available from OpenSSH 7.2), since it allows to enter the password only
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on first use.
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```zsh
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zstyle :omz:plugins:ssh-agent lazy yes
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```
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To **load multiple identities** use the `identities` style. This have no
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effect if `lazy` is enabled.
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```zsh
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zstyle :omz:plugins:ssh-agent identities id_rsa id_rsa2 id_github
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```
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----
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To **set the maximum lifetime of the identities**, use the `lifetime` style.
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The lifetime may be specified in seconds or as described in sshd_config(5)
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(see _TIME FORMATS_). If left unspecified, the default lifetime is forever.
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```zsh
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zstyle :omz:plugins:ssh-agent lifetime 4h
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```
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----
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To **pass arguments to the `ssh-add` command** that adds the identities on startup,
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use the `ssh-add-args` setting. You can pass multiple arguments separated by spaces:
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```zsh
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zstyle :omz:plugins:ssh-agent ssh-add-args -K -c -a /run/user/1000/ssh-auth
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```
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These will then be passed the the `ssh-add` call as if written directly. The example
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above will turn into:
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```zsh
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ssh-add -K -c -a /run/user/1000/ssh-auth <identities>
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```
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For valid `ssh-add` arguments run `ssh-add --help` or `man ssh-add`.
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## Credits
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Based on code from Joseph M. Reagle: https://www.cygwin.com/ml/cygwin/2001-06/msg00537.html
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Agent-forwarding support based on ideas from Florent Thoumie and Jonas Pfenniger
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