creates multiple identity providers in Keycloak using the Keycloak API (curl)

keycloak_create_multi_idps.sh

#!/usr/bin/env bash

set -euo pipefail

# Author: Jesper Rønn-Jensen, Nine A/S
# Date: 2025-04-23
# Version: 1.0
# Description: This script creates multiple identity providers in Keycloak using the Keycloak API.
#              Example on how to use Keycloaks API to create multiple Identity providers
#              the script file here uses curl command to provide the example
#
# Usage: ./keycloak_create_multi_idps.sh

KEYCLOAK_URL="https://keycloak.example.com"
KEYCLOAK_REALM="example-realm"
KEYCLOAK_USERNAME="admin"
KEYCLOAK_PASSWORD="password"
KEYCLOAK_CLIENT_ID="admin-cli"
IDP_RANGE_START=1
IDP_RANGE_END=500


function keycloak_login() {
  # Get the access token
  local response
  response=$(curl -s -X POST "${KEYCLOAK_URL}/auth/realms/${KEYCLOAK_REALM}/protocol/openid-connect/token" \
    -H "Content-Type: application/x-www-form-urlencoded" \
    -d "client_id=${KEYCLOAK_CLIENT_ID}" \
    -d "username=${KEYCLOAK_USERNAME}" \
    -d "password=${KEYCLOAK_PASSWORD}" \
    -d "grant_type=password")

  # Extract the access token from the response
  KEYCLOAK_ACCESS_TOKEN=$(echo "$response" | jq -r '.access_token')
}

function keycloak_create_identity_provider() {
  local provider_alias=$1
  local provider_url=$2

  # Create the identity provider
  curl -s -X POST "${KEYCLOAK_URL}/auth/admin/realms/${KEYCLOAK_REALM}/identity-provider/instances" \
    -H "Authorization: Bearer ${KEYCLOAK_ACCESS_TOKEN}" \
    -H "Content-Type: application/json" \
    -d '{
      "alias": "'"${provider_alias}"'",
      "providerId": "'"${provider_url}"'",
      "enabled": true,
      "config": {}
    }'
}


run_main() {
  keycloak_login

  for item in $(seq "${IDP_RANGE_START}" "${IDP_RANGE_END}"); do
    alias="fake_idp_${item}"
    url="https://fake-idp-${item}.example.com"
    keycloak_create_identity_provider "${alias}" "${url}"
  done
}

if [[ "${BASH_SOURCE[0]}" == "${0}" ]]
then
  run_main "$@"
fi