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description=Shows how to configure environment variables for your Cloud Run services using the Google Cloud console or gcloud CLI;

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n a cloud run service always configure a user managed service account instead maximum number of environment variables and limits you can set a maximum of 1000 environment variables for a cloud run service the maximum variable length is 32 kb set environment variables for services you can set environment variables for new and existing services note that the set env vars flag is a destructive action that deletes previously set environment variables not included in the new list of environment variables environment variables are bound to a specific service revision and are not visible to other services in your google cloud project you can set environment variables using the google cloud console the gcloud cli or a yaml file when you create a new service or deploy a new revision console in the google cloud console go to cloud run go to cloud run select services from the cloud run navigation menu and click deploy container to configure a new service if you are configuring an existing service click the service then click edit and deploy new revision if you are configuring a new service fill out the initial service settings page then click containers networking security to expand the service configuration page click the container tab in the variables secrets tab click add variable to add a new variable and specify the name you want for the variable and its value in the name and value fields for more information on how to set multiple environment variables or escape special characters see set multiple environment variables click create or deploy gcloud to specify environment variables when you deploy your service use the set env vars flag gcloud run deploy service image image_url set env vars key1 value1 key2 value2 replace the following service the name of your service key1 value1 key2 value2 the comma separated list of variable names and values image_url a reference to the container image for example us docker pkg dev cloudrun container hello latest if you use artifact registry the repository repo_name must already be created the url follows the format of location docker pkg dev project_id repo_name path tag for more information on how to set multiple environment variables or escape special characters see set multiple environment variables yaml if you are creating a new service skip this step if you are updating an existing service download its yaml configuration gcloud run services describe service format export service yaml update the name and value attributes under the env attribute under containers apiversion serving knative dev v1 kind service metadata name service spec template metadata name revision spec containers image image env name key 1 value value 1 name key n value value n replace the following service the name of your cloud run service image_url a reference to the container image for example us docker pkg dev cloudrun container hello latest if you use artifact registry the repository repo_name must already be created the url follows the format of location docker pkg dev project_id repo_name path tag key 1 value 1 the environment variable and value optionally add more variables and values as needed revision with a new revision name or delete it if present if you supply a new revision name it must meet the following criteria starts with service contains only lowercase letters numbers and does not end with a does not exceed 63 characters create or update the service using the following command gcloud run services replace service yaml the gcloud run services replace command defaults to using service yaml file if present terraform to learn how to apply or remove a terraform configuration see basic terraform commands add the following to a google_cloud_run_v2_service resource in your terraform configuration resource google_cloud_run_v2_service default name cloudrun service env var location us central1 deletion_protection false set to true in production template containers image us docker pkg dev cloudrun container hello environment variables env name foo value bar env name baz value quux the preceding google_cloud_run_v2_service resource specifies sets the foo environment variable to bar and the baz environment variable to quux update the environment variables as necessary compose to specify environment variables in your compose yaml file add the environment attribute to your service definition you can use either or as the list separator to specify multiple environment variables you can also use the env_file attribute services web image image environment key1 value1 key2 value2 replace the following image the url of your container image key1 value1 key2 value2 or key1 value1 key2 value2 the list of variable names and values deploy the service to deploy the services run the gcloud run compose up command gcloud run compose up compose yaml respond y to any prompts to install required components or to enable apis optional make your service public if you want to allow unauthenticated access to the service after deployment the cloud run service url is displayed copy this url and paste it into your browser to view the running container you can disable the default authentication from the google cloud console set default environment variables in the container you can use the env statement in a dockerfile to set default values for environment variables env key1 value1 key2 value2 order of precedence container versus service variables if you set a default environment variable in the container and also set an environment variable with the same name on the cloud run service the value set on the service takes precedence set multiple environment variables for services you can set multiple environment variables by using a configuration file or the set env vars flag set multiple environment variables using a configuration file to set multiple environment variables use an env file or a yaml file specify the environment variables in the following format env file key 1 value 1 key 2 value 2 key 3 value 3 replace key and value with variable names and values for example app_name my app yaml file key 1 value 1 key 2 value 2 key 3 value 3 replace key and value with variable names and values for example app_name my app to set these variables when you create a new service or deploy a new revision use the google cloud console the gcloud cli or compose console in the google cloud console go to cloud run go to cloud run select services from the cloud run navigation menu and click deploy container to configure a new service if you are configuring an existing service click the service then click edit and deploy new revision if you are configuring a new service fill out the initial service settings page then click containers networking security to expand the service configuration page click the container tab in the variables secrets tab click add variable and paste the contents of your env file or yaml file into the name field cloud run automatically populates the value field and creates new variables for each key value pair you define in your file click create or deploy gcloud to specify multiple environment variables from your configuration file run the following command gcloud run deploy service image image_url env vars file env_file_path replace the following service the name of your cloud run service image_url a reference to the container image for example us docker pkg dev cloudrun container hello latest if you use artifact registry the repository repo_name must already be created the url follows the format of location docker pkg dev project_id repo_name path tag env_file_path path to the env file or the yaml file for example production env or config production variables yaml compose to specify multiple environment variables in your compose yaml file add the env_file attribute to your service definition services web image image env_file env_file_path replace the following image the url of your container image env_file_path path to the env file deploy the service to deploy the services run the gcloud run compose up command gcloud run compose up compose yaml respond y to any prompts to install required components or to enable apis optional make your service public if you want to allow unauthenticated access to the service after deployment the cloud run service url is displayed copy this url and paste it into your browser to view the running container you can disable the default authentication from the google cloud console set multiple environment variables using the set env vars flag if you have multiple environment variables that cannot be listed in key1 value1 key2 value2 format you can repeat the set env vars flag multiple times set env vars key1 value1 set env vars key2 value2 set env vars key3 value3 escape comma characters because the comma character is used to split environment variables if your environment variable contains comma characters as values you need to escape those delimiters by specifying a different delimiter character for example set env vars key1 value1 value2 value3 key2 update environment variables for services you can update environment variables for existing services this is a non destructive approach that changes or adds environment variables but doesn t delete previously set environment variables console to update environment variables using the google cloud console in the google cloud console go to the cloud run services page go to cloud run select your service from the list and click edit and deploy new revision click the container tab in the variables and secrets tab edit the name or value fields and click done click deploy gcloud to update environment variables of an existing service use the update env vars flag gcloud run services update service update env vars key1 value1 key2 value2 replace the following service the name of your service key1 value1 key2 value2 the comma separated list of variable names and values to update environment variables of an existing multi region service use the gcloud run multi region services update command view environment variables settings to view the current environment variables settings for your cloud run service console in the google cloud console go to the cloud run services page go to cloud run click the service you are interested in to open the service details page click the revisions tab in the details panel at the right the environment variables setting is listed under the container tab gcloud use the following command gcloud run services describe service locate the environment variables setting in the returned configuration delete environment variables you can delete environment variables for existing services console to delete environment variables using the google cloud console in the google cloud console go to the cloud run services page go to cloud run select your service from the list and click edit and deploy new revision click the container tab in the variables and secrets tab move your cursor to the left of the value field of the environment variable you are removing to display the delete delete icon and click it click done click deploy gcloud to selectively remove environment variables of an existing service use the remove env vars flag gcloud run services update service remove env vars key1 key2 replace the following service the name of your service key1 key2 the comma separated list of variable names alternatively clear all previously set environment variables with the clear env vars flag gcloud run services update service clear env vars replace service with the name of your service best practices the following section highlights some of the best practices for configuring environment variables reserved environment variables for services the environment variables defined in the container runtime contract are reserved and cannot be set in particular the port environment variable is injected inside your container by cloud run you shouldn t set it yourself additional reserved environment variables when deploying functions cloud run sets the following runtime environment variables automatically when deploying functions function_target the function to be executed function_signature_type the type of the function http for http functions and event for event driven functions some additional environment variables are automatically set depending on the runtime your function uses these are based on the runtime s operating system for example debian_frontend shlvl or path and the language runtime for example node_env virtual_env or gopath environment variables that are provided by the environment other than the ones that are set automatically might change in future runtime versions as a best practice we recommend that you don t depend on or modify any environment variables that you haven t set explicitly modifying environment variables that are provided by the environment might lead to unpredictable outcomes attempts to modify such environment variables could be blocked or worse lead to unintended consequences such as functions that cannot start as a best practice consider prefixing any environment variables with a unique key to avoid conflicts invalid environment variables you can t use the following environment variables key description empty keys can t be an empty string keys can t contain the character x_google_ keys can t contain the prefix x_google_ sample code for code sample that show how to access environment variables in your code refer to handling sensitive configuration with secret manager in the end user authentication tutorial what s next you can use environment variables to set buildpacks configuration for language specific details see the buildpacks documentation for node js python go ruby php java if you are deploying from source and need to customize variables at build time see set build environment variables send feedback except as otherwise noted the content of this page is licensed under the creative commons attribution 4 0 license and code samples are licensed under the apache 2 0 license for details see the google developers site policies java is a registered trademark of oracle and or its affiliates last updated 2026 07 17 utc need to tell us more easy to understand easytounderstand thumb up solved my problem solvedmyproblem thumb up other otherup thumb up hard to understand hardtounderstand thumb down incorrect information or sample code incorrectinformationorsamplecode thumb down missing the information samples i need missingtheinformationsamplesineed thumb down other otherdown thumb down last updated 2026 07 17 utc products and pricing see all products google cloud pricing google cloud marketplace contact sales support community forums support release notes system status resources github getting started with google cloud code samples cloud architecture center training and certification engage blog events x twitter google cloud on youtube google cloud tech on youtube about google privacy site terms google cloud terms 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