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61 lines
1.9 KiB
Bash
61 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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#
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# Author: Hari Sekhon
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# Date: 2020-09-01 15:51:36 +0100 (Tue, 01 Sep 2020)
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#
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# https://github.com/HariSekhon/DevOps-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,SC1091
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. "$srcdir/lib/utils.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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For all or a given list of instances in the current GCP project, list the instance names and their service accounts
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GCloud SDK is required, and will attempt to infer the zone based on the instance name, but sometimes it cannot, in
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which cases you advised to set the compute/zone yourself (gcloud config set compute/zone ...)
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Caveat: slow - would write a Python version but the API is so bad and hardly documented that it's not worth the trouble
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"
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# used by usage() in lib/utils.sh
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# shellcheck disable=SC2034
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usage_args="[<instances>]"
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help_usage "$@"
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#min_args 1 "$@"
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list_vm_service_account(){
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local instance="$1"
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local zone="${2:-}"
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local opts=()
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if [ -n "$zone" ]; then
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opts+=(--zone "$zone")
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fi
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# outputs the results to stderr when no zone is specified
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gcloud compute instances describe "$instance" "${opts[@]}" --format='table[no-heading](name, serviceAccounts.email.join(","))' 2>&1 #|
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# GCloud SDK changes behaviour to error out if piped!
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#grep -Ev '^No zone specified. Using zone \[[[:alnum:]-]+\] for instance:' || :
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}
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if [ $# -gt 0 ]; then
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for arg; do
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list_vm_service_account "$arg"
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done
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else
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gcloud compute instances list --format='table[no-heading](name, serviceAccounts.email.join(","))'
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fi
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