forked from LibertaCasa/salt-keydiff
108 lines
2.6 KiB
Bash
Executable File
108 lines
2.6 KiB
Bash
Executable File
#!/bin/sh
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# Copyright 2023, Georg Pfuetzenreuter
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#
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# Licensed under the EUPL, Version 1.2 or - as soon they will be approved by the European Commission - subsequent versions of the EUPL (the "Licence").
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# You may not use this work except in compliance with the Licence.
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# An English copy of the Licence is shipped in a file called LICENSE along with this applications source code.
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# You may obtain copies of the Licence in any of the official languages at https://joinup.ec.europa.eu/collection/eupl/eupl-text-eupl-12.
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#
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# ---
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#
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# This program helps with accepting Salt minion keys by asking for a key to compare with first. Intended to be run on a Salt master.
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set -Ceu
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config='/etc/salt-scriptconfig'
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partner='null'
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minion="${1:-null}"
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key_user="${2:-null}"
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NOCOLOR="$(tput sgr0)"
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exco=0
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if ! command -v jq >/dev/null || ! command -v salt-key >/dev/null
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then
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printf 'Please ensure jq and salt-key are available.\n'
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exit 1
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fi
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if [ -f "$config" ]
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then
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# shellcheck source=/dev/null
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. "$config"
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if [ ! "$partner" = 'null' ]
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then
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ssh_key="${ssh_key:?Configuration option 'partner' requires 'ssh_key'}"
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fi
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fi
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if [ "$minion" = 'null' ]
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then
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printf 'Please specify the minion to diff against.\n'
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exit 1
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fi
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key_salt="$(salt-key --out json -f "$minion" | jq --arg minion "$minion" -r '.minions_pre[$minion]')"
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if [ "$key_salt" = 'null' ]
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then
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printf 'No pending keys for %s.\n' "$minion"
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exit 2
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fi
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if [ ! "$partner" = 'null' ]
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then
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key_salt_remote="$(ssh -qi "$ssh_key" "$partner" salt-key --out json -f "$minion" | jq --arg minion "$minion" -r '.minions_pre[$minion]')"
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if [ ! "$key_salt" = "$key_salt_remote" ]
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then
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printf 'Local and remote keys do not match, bailing out.\n'
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exit 2
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fi
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fi
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if [ "$key_user" = 'null' ]
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then
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# shellcheck disable=SC2016
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printf 'Enter fingerprint to diff against (run `salt-call --local key.finger` on the minion)\n'
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read -r key_user
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fi
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if [ "$key_salt" = "$key_user" ]
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then
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GREEN="$(tput setaf 2)"
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printf '%sMatches%s\n' "$GREEN" "$NOCOLOR"
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printf 'Accept? (y/n)\n'
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read -r answer
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if [ "$answer" = 'y' ]
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then
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if salt-key --out=quiet -yqa "$minion" >/dev/null
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then
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printf 'Accepted on local master\n'
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else
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printf 'Failed to accept key on local master\n'
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exco=1
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fi
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if [ ! "$partner" = 'null' ]
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then
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if ssh -qi "$ssh_key" "$partner" salt-key --out=quiet -yqa "$minion" >/dev/null
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then
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printf 'Accepted on remote master\n'
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else
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printf 'Failed to accept key on remote master\n'
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exco=1
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fi
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fi
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else
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printf 'Bye\n'
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exco=2
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fi
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elif [ ! "$key_salt" = "$key_user" ]
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then
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RED="$(tput setaf 1)"
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printf '%sMismatch%s\n' "$RED" "$NOCOLOR"
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exco=2
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fi
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exit "$exco"
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