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71 lines
1.9 KiB
Bash
71 lines
1.9 KiB
Bash
#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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# args: vagrant/kubernetes/Vagrantfile
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#
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# Author: Hari Sekhon
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# Date: 2020-08-15 12:50:08 +0100 (Sat, 15 Aug 2020)
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#
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# https://github.com/harisekhon/bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/harisekhon
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# shellcheck disable=SC1090
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. "$srcdir/lib/utils.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Quick script to parse a given Vagrantfile and emit an /etc/hosts format output, eg:
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172.16.0.2 kube1.local kube1
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172.16.0.3 kube2.local kube2
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Vagrantfile can be given as first arg, otherwise checks for \$PWD/Vagrantfile or /vagrant/Vagrantfile for convenience
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Tested on vagrant/kubernetes/Vagrantfile in this repo and used as part of provision scripts
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"
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# used by usage() in lib/utils.sh
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# shellcheck disable=SC2034
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usage_args="<Vagrantfile>"
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help_usage "$@"
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#min_args 1 "$@"
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if [ $# -gt 0 ]; then
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Vagrantfile="$1"
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elif [ -f Vagrantfile ]; then
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Vagrantfile=Vagrantfile
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elif [ -f /vagrant/Vagrantfile ]; then
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# auto-detect when running inside a Vagrant VM
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Vagrantfile=/vagrant/Vagrantfile
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else
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usage "Vagrantfile not specified and no Vagrantfile found in \$PWD or /vagrant/"
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fi
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sed 's/#.*//; /^[[:space:]]*$/d' "$Vagrantfile" |
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grep -A 20 '^[[:space:]]*config.vm.define' |
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grep -e '^[[:space:]]*config.vm.define' \
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-e '^[[:space:]]*config.vm.network.*private_network.*ip' |
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grep -v -e "^--" -e "default_hostname" |
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sed '
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s/ do .*//;
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s/config.vm.[[:alnum:]]*//;
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s/private_network//g;
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s/[^[:alnum:][:space:].]//g;
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s/[[:space:]]ip[[:space:]]//
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' |
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while read -r host; do
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read -r ip
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echo "$ip $host.local $host"
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done
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