compile time checking

[gilesknap]

There are a number of things that don't get checked until runtime inside IOCs. At present we mostly rely on the schema helping us make sure our YAML is good when we are editing in a YAML checking editor.

Things we should do in the container build:

• validate the schema of all support YAML
• check support YAML for duplicate definition id's
• check support YAML for database template references to non-existent files
• ANYTHING ELSE?

Also it occurs to me that ec ioc validate for checking ioc instance yaml is woefully inadequate. At present it gets a container with a schema checker in it.

It would be far more instructive to instead fetch the generic IOC container it refers to and check it can generate the runtime assets inside of that - and launch the binary. That would pick up all possible errors that can occur. Including those that are currently missing.

This issue supersedes #170 so will be closing that.

[gilesknap]

The CI for ibek-support, beamline repos and even for generic iocs has got much more sophisticated since writing this issue.

Because the beamline repo CI generates runtime assets for all its IOC instances all of the points in the OP are covered.