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Description
The current dev container features specification proposal is based on an array-like syntax for the 'features' attribute, and thus allows for the invocation of a single feature >1 with different options.
An execution goal stated in the spec is that
"It should be possible to execute a feature multiple times with different parameters."
We are currently discussing how best to tackle feature installation order (#43), with the discussion leaning toward proceeding without use of an array, meaning that there is a need to explore other mechanisms for invoking a feature to install >1 times.
Proposal
The propose extending the value to include an array of objects.
This devcontainer.json will invoke the devcontainers/features/dotnet feature twice with two sets of options in order (first with the 3.1 set of arguments, and then 6.0 set of arguments).
{ "image": "azcr.io/joshspicer/my-docker-image", "features": { "devcontainers/features/dotnet": [ { "version": 3.1, "runtimeOnly": true, "installUsingApt": true }, { "version": 6.0, "runtimeOnly": false, "installUsingApt": false } ] } }