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pim
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pim
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#!/bin/bash
# This script is used to make PIM assignments
print_help() {
cat <<EOF
Usage: $(basename "$0") [OPTIONS]
Required parameters:
--subscription, -s Subscription ID or name (fuzzy search enabled)
--resource-group, -g Resource group name (fuzzy search enabled)
Optional parameters:
--message, -m Justification message
--role, -r Role name (default: Contributor)
--time, -t Duration (default: 8H). Format: 8H (hours) or 8M (minutes)
--help Show this help message
EOF
exit 1
}
check_dependencies() {
for cmd in curl az jq fzf; do
if ! command -v $cmd &>/dev/null; then
echo "$cmd is required but not installed. Exiting."
exit 1
fi
done
}
validate_time() {
if [[ ! $time =~ ^[0-9]+[HM]$ ]]; then
echo "Invalid time format. Use nH (hours, max 8) or nM (minutes, min 5, max 60)"
exit 1
fi
if [[ $time == *H ]]; then
local hours=${time%H}
if ((hours < 1 || hours > 8)); then
echo "Invalid hour format. Use 1-8H."
exit 1
fi
elif [[ $time == *M ]]; then
local minutes=${time%M}
if ((minutes < 5 || minutes > 60)); then
echo "Invalid minute format. Use 5-60M."
exit 1
fi
fi
}
parse_arguments() {
while [[ "$#" -gt 0 ]]; do
case $1 in
-s|--subscription)
subscription="$2"
shift
;;
-g|--resource-group)
resource_group="$2"
shift
;;
-m|--message)
message="$2"
shift
;;
-r|--role)
role="$2"
shift
;;
-t|--time)
time="$2"
shift
;;
--help)
print_help
;;
*)
echo "Unknown parameter passed: $1"
print_help
;;
esac
shift
done
}
set_defaults() {
role=${role:-"Contributor"}
time=${time:-"1H"}
}
fuzzy_select_subscription() {
subscription=$(az account list --query "[].{name:name, id:id}" -o tsv | fzf --prompt="Select Subscription: " | awk '{$NF=""; print $0}' | sed 's/ $//')
if [[ -z "$subscription" ]]; then
echo "No subscription selected. Exiting."
exit 1
fi
}
fuzzy_select_resource_group() {
resource_group=$(az group list --subscription "$subscription" --query "[].name" -o tsv | fzf --prompt="Select Resource Group: ")
if [[ -z "$resource_group" ]]; then
echo "No resource group selected. Exiting."
exit 1
fi
}
main() {
check_dependencies
parse_arguments "$@"
set_defaults
if [[ -z "$subscription" ]]; then
fuzzy_select_subscription
fi
if [[ -z "$resource_group" ]]; then
fuzzy_select_resource_group
fi
validate_time
if [[ -z "$message" ]]; then
read -p "Please provide a justification message: " message
if [[ -z "$message" ]]; then
echo "Justification message cannot be empty"
exit 1
fi
fi
user_object_id=$(az ad user list --filter "mail eq '$(az account show --query user.name -o tsv)'" --query "[0].id" -o tsv)
guid=$(uuidgen | tr '[:upper:]' '[:lower:]')
token=$(az account get-access-token --query accessToken -o tsv)
subscription_id=$(az account list --query "[?id=='$subscription' || name=='$subscription'].id" -o tsv)
role_definition_id=$(curl -s -H "Authorization: Bearer $token" -X GET \
"https://management.azure.com/subscriptions/${subscription_id}/resourceGroups/${resource_group}/providers/Microsoft.Authorization/roleEligibilityScheduleInstances?api-version=2020-10-01&\$filter=asTarget()" | \
jq -r --arg resource_group "$resource_group" --arg role "$role" \
'.value[] | select(.properties.scope | endswith($resource_group)) | select(.properties.expandedProperties.roleDefinition.displayName == $role) | .properties.expandedProperties.roleDefinition.id' | awk -F'/' '{print $NF}')
justification="${message// /_}"
data=$(cat <<EOF
{
"Properties": {
"RoleDefinitionId": "/subscriptions/${subscription_id}/providers/Microsoft.Authorization/roleDefinitions/${role_definition_id}",
"PrincipalId": "${user_object_id}",
"RequestType": "SelfActivate",
"Justification": "${justification}",
"ScheduleInfo": {
"StartDateTime": null,
"Expiration": {
"Type": "AfterDuration",
"EndDateTime": null,
"Duration": "PT${time}"
}
}
}
}
EOF
)
response=$(curl -s -H "Authorization: Bearer $token" -X PUT -H "Content-Type: application/json" -d "$data" \
"https://management.azure.com/subscriptions/${subscription_id}/resourceGroups/${resource_group}/providers/Microsoft.Authorization/roleAssignmentScheduleRequests/${guid}?api-version=2020-10-01")
if [[ $(echo "$response" | jq -r '.error') != "null" ]]; then
echo "Error: $(echo "$response" | jq -r '.error.message')"
exit 1
fi
if [[ $(echo "$response" | jq -r '.properties.status') == "Provisioned" ]]; then
duration=$(echo "$response" | jq -r '.properties.scheduleInfo.expiration.duration')
if [[ $duration == *"H" ]]; then
# Extract hours and convert to minutes for the date command
hours=$(echo "$duration" | grep -o '[0-9]\+')
expiration_time=$(date -v +${hours}H +"%Y-%m-%d %H:%M:%S")
elif [[ $duration == *"M" ]]; then
# Extract minutes directly for the date command
minutes=$(echo "$duration" | grep -o '[0-9]\+')
expiration_time=$(date -v +${minutes}M +"%Y-%m-%d %H:%M:%S")
fi
echo "PIM assignment active. Expires: $expiration_time"
else
echo "An unknown error occurred."
fi
}
main "$@"