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George Weale
2367901ec5
Co-authored-by: George Weale <gweale@google.com> PiperOrigin-RevId: 858763407
81 lines
3.2 KiB
Python
81 lines
3.2 KiB
Python
# Copyright 2026 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import textwrap
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from google.adk.agents.llm_agent import LlmAgent
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from google.adk.auth.auth_credential import AuthCredentialTypes
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from google.adk.tools.pubsub.config import PubSubToolConfig
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from google.adk.tools.pubsub.pubsub_credentials import PubSubCredentialsConfig
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from google.adk.tools.pubsub.pubsub_toolset import PubSubToolset
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import google.auth
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# Define the desired credential type.
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# By default use Application Default Credentials (ADC) from the local
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# environment, which can be set up by following
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# https://cloud.google.com/docs/authentication/provide-credentials-adc.
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CREDENTIALS_TYPE = None
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# Define an appropriate application name
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PUBSUB_AGENT_NAME = "adk_sample_pubsub_agent"
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# Define Pub/Sub tool config.
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# You can optionally set the project_id here, or let the agent infer it from context/user input.
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tool_config = PubSubToolConfig(project_id=os.getenv("GOOGLE_CLOUD_PROJECT"))
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if CREDENTIALS_TYPE == AuthCredentialTypes.OAUTH2:
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# Initialize the tools to do interactive OAuth
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# The environment variables OAUTH_CLIENT_ID and OAUTH_CLIENT_SECRET
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# must be set
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credentials_config = PubSubCredentialsConfig(
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client_id=os.getenv("OAUTH_CLIENT_ID"),
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client_secret=os.getenv("OAUTH_CLIENT_SECRET"),
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)
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elif CREDENTIALS_TYPE == AuthCredentialTypes.SERVICE_ACCOUNT:
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# Initialize the tools to use the credentials in the service account key.
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# If this flow is enabled, make sure to replace the file path with your own
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# service account key file
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# https://cloud.google.com/iam/docs/service-account-creds#user-managed-keys
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creds, _ = google.auth.load_credentials_from_file("service_account_key.json")
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credentials_config = PubSubCredentialsConfig(credentials=creds)
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else:
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# Initialize the tools to use the application default credentials.
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# https://cloud.google.com/docs/authentication/provide-credentials-adc
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application_default_credentials, _ = google.auth.default()
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credentials_config = PubSubCredentialsConfig(
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credentials=application_default_credentials
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)
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pubsub_toolset = PubSubToolset(
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credentials_config=credentials_config, pubsub_tool_config=tool_config
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)
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# The variable name `root_agent` determines what your root agent is for the
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# debug CLI
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root_agent = LlmAgent(
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model="gemini-2.5-flash",
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name=PUBSUB_AGENT_NAME,
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description=(
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"Agent to publish, pull, and acknowledge messages from Google Cloud"
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" Pub/Sub."
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),
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instruction=textwrap.dedent("""\
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You are a cloud engineer agent with access to Google Cloud Pub/Sub tools.
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You can publish messages to topics, pull messages from subscriptions, and acknowledge messages.
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"""),
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tools=[pubsub_toolset],
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)
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