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62 lines
1.8 KiB
Bash
62 lines
1.8 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: 2021-04-22 16:34:20 +0100 (Thu, 22 Apr 2021)
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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 "${DEBUG:-}" ] && set -x
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srcdir="$(dirname "${BASH_SOURCE[0]}")"
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# shellcheck disable=SC1090
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. "$srcdir/lib/utils.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Lists one or all GCP service accounts with their members and roles
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Useful for finding which users have ability to impersonate a service account and more importantly for GKE Workload Identity mappings
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Service accounts must be given by email as standard, eg:
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<name>@<project>.iam.gserviceaccount.com
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Output:
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<service_account_email> <member> <role>
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eg.
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<name>@<project>.iam.gserviceaccount.com serviceAccount:jenkins@<project>.iam.gserviceaccount.com roles/iam.serviceAccountUser
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<name>@<project>.iam.gserviceaccount.com serviceAccount:<project>.svc.id.goog[k8s_namespace/k8s_sa] roles/iam.workloadIdentityUser
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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="[<service_account_email1> <service_account_email2>]"
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help_usage "$@"
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max_args 1 "$@"
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if [ $# -gt 0 ]; then
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tr ' ' '\n' <<< "$@"
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else
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gcloud iam service-accounts list --format='get(email)'
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fi |
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while read -r service_account_email; do
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gcloud iam service-accounts get-iam-policy "$service_account_email" --format=json |
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jq -r ".bindings[]? | [ \"$service_account_email\", .members[]?, .role] | @tsv"
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done #|
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# tidier but delays output - can pipe to this column yourself if you want this trade off
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#column -t
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