Simplify State Management RFC #35
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Signed-off-by: Tarun Pothulapati <tarunpothulapati@outlook.com>
Signed-off-by: Tarun Pothulapati <tarunpothulapati@outlook.com>
Signed-off-by: Tarun Pothulapati <tarunpothulapati@outlook.com>
alpeb
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Aug 25, 2020
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| Currently, Linkerd state in the `linkerd-config` ConfigMap as flags parsed from `installOptions`. | ||
| This has become counter intuitive after we added Helm support as `Values` struct | ||
| became our main source of truth (for rendering, etc), and causing back and forth | ||
| conversions between `installOptions` and `Values`. This RFC aims to remove the | ||
| unnecessary complexity in managing state and simplify things. |
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I think it's worth framing the problem at first a little less technically, clarifying that the goal is to simplify state management for upgrades
Signed-off-by: Tarun Pothulapati <tarunpothulapati@outlook.com>
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This was accidentally closed when we changed the default branch to |
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Rendered RFC
Summary
Currently, Linkerd state in the
linkerd-configConfigMap as flags parsed frominstallOptions.This has become counter intuitive after we added Helm support as
Valuesstructbecame our main source of truth (for rendering, etc), and causing back and forth
conversions between
installOptionsandValues. This RFC aims to remove theunnecessary complexity in managing state and simplify things.
Problem Statement (Step 1)
Currently,
linkerd-configconfigMap is not only used for upgrades but also bymultiple components like Proxy Injector, CLI, etc to understand the current
cluster/linkerd state. This has the following problems:
installOptionsand
Values.Valuesis not the source of truth, hacks had to be/beingmade to make state (outside of flags, etc) to be stored and retrieved.
Signed-off-by: Tarun Pothulapati tarunpothulapati@outlook.com