Created date annotation restrictions need to be documented or removed.

[taqtiqa-mark]

This build step

${ACBUILD} annotation add created "$( date --utc --iso-8601=ns )"

results in this error

/bin/acbuild --debug annotation add created 2017-08-02T07:27:20,034850873+0000

Adding annotation "created"="2017-08-02T07:27:20,034850873+0000"

annotation add: json: error calling MarshalJSON for type types.Annotations: bad Date: parsing time "2017-08-02T07:27:20,034850873+0000" as "2006-01-02T15:04:05Z07:00": cannot parse ",034850873+0000" as "Z07:00"

The documentation here is silent

Hope this helps.

[taqtiqa-mark]

Now I am guessing. But in case it helps save someone else N build runs.... if acbuild is using a std go library, this page, hints that these might be allowed timestamps. True? who knows.

    ANSIC       = "Mon Jan _2 15:04:05 2006"
    UnixDate    = "Mon Jan _2 15:04:05 MST 2006"
    RubyDate    = "Mon Jan 02 15:04:05 -0700 2006"
    RFC822      = "02 Jan 06 15:04 MST"
    RFC822Z     = "02 Jan 06 15:04 -0700" // RFC822 with numeric zone
    RFC850      = "Monday, 02-Jan-06 15:04:05 MST"
    RFC1123     = "Mon, 02 Jan 2006 15:04:05 MST"
    RFC1123Z    = "Mon, 02 Jan 2006 15:04:05 -0700" // RFC1123 with numeric zone
    RFC3339     = "2006-01-02T15:04:05Z07:00"
    RFC3339Nano = "2006-01-02T15:04:05.999999999Z07:00"
    Kitchen     = "3:04PM"
    // Handy time stamps.
    Stamp      = "Jan _2 15:04:05"
    StampMilli = "Jan _2 15:04:05.000"
    StampMicro = "Jan _2 15:04:05.000000"
    StampNano  = "Jan _2 15:04:05.000000000"

[lucab]

No need to guess, the type of that field is fully specified here: https://github.com/appc/spec/blob/master/spec/types.md#timestamps-type, even with an example on how to produce it. From your list above, this corresponds to RFC3339Nano.

[taqtiqa-mark]

I'm closing this. The project is no longer maintained and umoci and buildah are likely the tools people should be looking at. With that as context, this issue is just noise.