install.fairie/docs/scripts/after/run_onchange_after_08-generate-public-keys.sh.tmpl.md
2023-08-08 03:06:49 -04:00

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---
title: Generate Missing Public SSH Keys
description: Attempts to create missing public SSH keys for all private keys that are missing a public key file
sidebar_label: 08 Generate Missing Public SSH Keys
slug: /scripts/after/run_onchange_after_08-generate-public-keys.sh.tmpl
githubLocation: https://github.com/megabyte-labs/install.doctor/blob/master/home/.chezmoiscripts/universal/run_onchange_after_08-generate-public-keys.sh.tmpl
scriptLocation: https://github.com/megabyte-labs/install.doctor/raw/master/home/.chezmoiscripts/universal/run_onchange_after_08-generate-public-keys.sh.tmpl
repoLocation: home/.chezmoiscripts/universal/run_onchange_after_08-generate-public-keys.sh.tmpl
---
# Generate Missing Public SSH Keys
Attempts to create missing public SSH keys for all private keys that are missing a public key file
## Overview
Using private SSH keys, you can generate the corresponding public key. This script ensures that any SSH private key
that does not have a matching `.pub` public key file has one generated.
## Source Code
```
#!/usr/bin/env bash
# @file Generate Missing Public SSH Keys
# @brief Attempts to create missing public SSH keys for all private keys that are missing a public key file
# @description
# Using private SSH keys, you can generate the corresponding public key. This script ensures that any SSH private key
# that does not have a matching `.pub` public key file has one generated.
{{ $sshFiles := (output "find" (joinPath .chezmoi.homeDir ".ssh") "-type" "f") -}}
{{- range $sshFile := splitList "\n" $sshFiles -}}
{{- if ne $sshFile "" -}}
# {{ $sshFile }} hash: {{ $sshFile | sha256sum }}
{{ end -}}
{{- end }}
{{ includeTemplate "universal/profile" }}
{{ includeTemplate "universal/logg" }}
logg info 'Ensuring public keys are present'
find "$HOME/.ssh" -type f -maxdepth 1 ! -name "*.pub" ! -name "authorized_keys*" ! -name "known_host*" ! -name "config" | while read FILE; do
if [ ! -f "${FILE}.pub" ]; then
logg info 'Generating missing public key for `'"$FILE"'`'
ssh-keygen -f "$FILE" -y > "${FILE}.pub"
chmod 600 "${FILE}.pub"
fi
done
```