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80 lines
2.5 KiB
Bash
80 lines
2.5 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: 2022-06-15 18:41:42 +0100 (Wed, 15 Jun 2022)
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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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. "$srcdir/lib/aws.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Deletes an IAM policy by first handling all prerequisite steps of deleting all prior versions and detaching all users, groups and roles
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Because doing a straight delete will fail with an error like this:
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An error occurred (DeleteConflict) when calling the DeletePolicy operation: This policy has more than one version. Before you delete a policy, you must delete the policy's versions. The default version is deleted with the policy.
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or this:
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An error occurred (DeleteConflict) when calling the DeletePolicy operation: Cannot delete a policy attached to entities.
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"
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help_usage "$@"
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min_args 1 "$@"
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policy="$1"
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export AWS_DEFAULT_OUTPUT=json
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aws_account_id="$(aws_account_id)"
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policy_arn="arn:aws:iam::$aws_account_id:policy/$policy"
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detach_entity(){
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local entity_type="$1"
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local entity="$2"
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entity_type="$(tr '[:upper:]' '[:lower:]' <<< "$entity_type")"
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timestamp "Detaching $entity_type $entity"
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aws iam "detach-${entity_type}-policy" "--${entity_type}-name" "$entity" --policy-arn "$policy_arn"
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}
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detach_entities(){
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local entity_type="$1"
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aws iam list-entities-for-policy --policy-arn "$policy_arn" |
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jq -r ".Policy${entity_type}s[].${entity_type}Name" |
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while read -r entity; do
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detach_entity "$entity_type" "$entity"
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done
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}
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older_policy_versions="$(aws iam list-policy-versions --policy-arn "$policy_arn" |
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jq -r '.Versions[] | select(.IsDefaultVersion == false) | .VersionId')"
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for policy_version_id in $older_policy_versions; do
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timestamp "Deleting policy '$policy' version '$policy_version_id'"
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aws iam delete-policy-version --policy-arn "$policy_arn" --version-id "$policy_version_id"
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done
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detach_entities User
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detach_entities Group
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detach_entities Role
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timestamp "Deleting policy '$policy'"
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aws iam delete-policy --policy-arn "$policy_arn"
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timestamp "Done"
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