Currently, this is a beta feature and is behind the feature flag,
CDS_SERVICE_OVERRIDES_2_0. Contact Harness Support to enable the feature.
Harness has introduced an enhanced experience for service, environment, and infrastructure overrides in Continuous Delivery (CD). A new page, named Overrides, is added in Deployments. In Overrides, you can define overrides for services, environments, and infrastructures.
Overrides can be defined at project, organization, and account levels.
For information on overrides V1, go to Services and environments basics.
- Runtime inputs are not supported for Infrastructure Specific and Service & Infrastructure Specific variables.
Migration notice for existing Harness customers: Overrides V2
Dear valued customers,
We are excited to announce an upcoming Overrides V2 migration aimed at enhancing your experience with Harness. Here's what you need to know.
- New Experience Awaits: Starting September 7th, 2023, Harness is transitioning from the current service and environment overrides experience to the much anticipated Override V2 experience.
- Seamless Migration: The migration process has been designed to be as smooth as possible. It will occur in phases, referred to as rings.
- The best part? No active engagement is required on your part. Harness will handle the migration in the background. We will notify each customer a week prior to their scheduled migration date, based on the ring they're allocated to.
- Continuity Assured: We don't anticipate any disruptions or failures during this process. Rest assured, your existing pipelines will remain compatible with the service and environment override V1 experience. Automation and existing APIs will still work.
Why Overrides V2?
- Greater Flexibility: With Overrides V2, you can now manage overrides for any CD entity. This includes service-specific environment overrides and Global Environment override variables.
- Enhanced Infrastructure Variable Management: Beyond the current capabilities, users can now manage infrastructure overrides and service-specific infrastructure overrides.
- Independent Management: Overrides will be represented as their own YAML object, allowing for more streamlined and independent management.
- More Granular Configuration: You can now set up overrides at both the account and organizational level for service and environment entities within a project context.
For those keen to delve deeper and understand more about Overrides V2, we've got you covered. Here are some additional resources:
Your trust is our top priority, and we're always here to support you. Thank you for being a valued Harness customer. We look forward to continuing our journey together, with an ever-improving platform and service.
Harness CD Product and Engineering Team
Updated experience since the demo video on 11.26.2023
Now, if Overrides V2 is enabled on your account, it is globally enabled on the account. Harness has removed the per-project opt-in experience because it is in the process of making Overrides V2 the default experience in Harness. If the Overrides V2 experience is enabled on your account, make sure that Harness migrates your existing overrides to the Overrides V2 experience. After the migration, the overrides user interface becomes available on the Overrides tab instead of the Environments tab.
Your existing automation continues to work and the APIs are backward compatible with the V1 experience.
Harness is also making the following improvements:
- Search, filtering, and sorting capabilities on the overrides listing page.
- A YAML view for Overrides V2, to aid your understanding of its YAML structure.
- Config Files
- Application Settings and Connection Strings
You can override the following manifest types:
- Values YAML
- OpenShift Param
- Helm Repo
- Tanzu Application Service (TAS) manifest
- TAS vars
- TAS AutoScalar
Config files are completely overridden.
Config files are a black box that can contain multiple formats and content, such as YAML, JSON, plain text, etc. Consequently, they cannot be overridden like values YAML files.
Like config files, variables are completely overridden.
You can use expressions to reference service variables. For example,
You can reference service variables in your pipeline steps, values YAML, JIRA steps, and so on.
For more information on variables, go to Built-in and custom Harness variables reference.
In Azure App Service configuration, Web App settings Application Settings and Connection Strings can be passed as environment variables to the application code.
You can override Application Settings and Connection Strings from Global Environment overrides.
Override service, environment, and infrastructure settings
To override one or more settings for all services, environments, and infrastructures at the project, organization, or account level, do the following.
In Deployments, select your project, and then select Overrides.
Select an override method:
- Global Environment
- Service Specific
- Infrastructure Specific
- Service & Infrastructure Specific
Select New Override.
Select a project, organization, or account-level override.
In Override Type, select one of the following override types:
- Config File
- Application Settings (applicable to Global Environment override method only)
- Connection Strings (applicable to Global Environment override method only)
Override the setting.
The override priority from top to bottom is:
- Infrastructure & Service Specific overrides
- Infrastructure Specific overrides
- Service Specific overrides
- Global Environment overrides
Overrides defined at project/organization/account levels have the following override priority: