Deploy your app once to each customer
Do you deploy a unique instance of your application for each of your end customers? Perhaps each customer gets their own database, or their own IIS website, or they run the same application with slightly different settings.
Octopus is the only automated deployment/release management tool that includes multi-tenancy as a first class concept. You can create and manage thousands of tenants within Octopus, assign them to projects, deploy new releases to tenants in bulk, and handle tenant-specific code and configuration settings.
Deploy different versions of your application to each tenant
Octopus and other deployment automation tools usually think two-dimensionally - we have project releases, and they are deployed to environments. Tenants in Octopus adds a third dimension, letting you deploy different releases of your application, to different environments, on behalf of different tenants.
Give each tenant their own test or production environments
Each tenant can have their own production environment, or even their own test environments. You can set up rules to ensure a release was deployed to the tenant's test environment before it goes to their production. Automatically send emails to your tenant when you've deployed something to test for them to test it before it gets promoted.
Manage tenant-specific configuration
Define settings that are tenant-specific in your project - such as where the tenants custom CSS stylesheet lives, or what logo image they want to use, or what connection string your application should use. As you create each tenant, Octopus will prompt you to set those settings, and warn you if you missed any.
Custom steps and code for each tenant
Deployment steps and code can be scoped to individual tenants or groups of tenants. For example, customers who have paid for your "CRM" module can be given a tag, and then a deployment step that installs the CRM module can run only on tenants with that tag. If you tend to fork your code for each tenant, you can have Octopus fetch different packages of your app depending on the tenant.
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Currently updating a deployment process in @OctopusDeploy. I forgot how easy this was to use, everything just makes sense.— David Swindells (@d_swindells) January 30, 2019
Tools like @OctopusDeploy can be great in enabling culture change, we've been able to scale and improve our configuration story since we started using it.— Neil Chalk (@_neilch) July 19, 2018