* fn: allow specified docker networks in functions
If FN_DOCKER_NETWORK is specified with a list of
networks, then agent driver picks the least used
network to place functions on.
* add mutex comment
adds a test for the protocol dumping of a request to the containert stdin.
there are a number of vectors to test for a cloud event, but since we're going
to change that behavior soon it's probably a waste of time to go about doing
so. in any event, this was pretty broken. my understanding of the cloud event
spec is deepening and the json stuff overall seems a little weird.
* fixes content type issue around json checking (since a string is also a json
value, we can just decode it, even though it's wasteful it's more easily
correct)
* doesn't force all json values to be map[string]interface{} and lets them be
whoever they want to be. maybe their dads are still proud.
closes#966
if we want them back, we can dig them out of git instead of some poor soul
uncommenting them 10 years from now and spending 3 months on failing CI builds
trying to figure out how a test that breaks doesn't mean the code's broke.
these tests are notoriously flaky and hard to understand/fix, they also test
very specific agent behaviors all the way through the front end when it may be
easier to test them in unit tests instead (should we so choose). at least,
since the behaviors tested aren't being changed very often, these are only
serving to provide negative value in time wasted re-running the test suite
[since them failing doesn't really indicate the code being wrong].
the `IOPipes` test is partially covered by `TestPipesAreClear` which hasn't
cropped up as being as flaky, but it tests less behaviors. it is not easy tt o
understand, either. while i think we learned a lot from these tests, they
haven't been a great citizen of our test suite at large, i figure if we need
to change runner behavior in the future we can maybe make another go at it.
This is useful when preceding middleware reads httpRequest.Body to
perform some logic, and assigns a new ReadCloser to httpRequest.Body
(as body can be read only once).
* fn: non-blocking resource tracker and notification
For some types of errors, we might want to notify
the actual caller if the error is directly 1-1 tied
to that request. If hotLauncher is triggered with
signaller, then here we send a back communication
error notification channel. This is passed to
checkLaunch to send back synchronous responses
to the caller that initiated this hot container
launch.
This is useful if we want to run the agent in
quick fail mode, where instead of waiting for
CPU/Mem to become available, we prefer to fail
quick in order not to hold up the caller.
To support this, non-blocking resource tracker
option/functions are now available.
* fn: test env var rename tweak
* fn: fixup merge
* fn: rebase test fix
* fn: merge fixup
* fn: test tweak down to 70MB for 128MB total
* fn: refactor token creation and use broadcast regardless
* fn: nb description
* fn: bugfix
make app.annotations and routes.annotations non-null always
This resolves a schema ambiguity that arrose in the annotations layer that would result in different schemas depending on whether you started afresh or migrated up.
* CloudEvents I/O format support.
* Updated format doc.
* Remove log lines
* This adds support for CloudEvent ingestion at the http router layer.
* Updated per comments.
* Responds with full CloudEvent message.
* Fixed up per comments
* Fix tests
* Checks for cloudevent content-type
* doesn't error on missing content-type.
In the case the function execution fails the output returned is empty, an
empty output satisfies the "string.Contanis()" checks, as an empty string
is always contained in any string.
The change adds a check on the length of the actual output.
* migratex api uses tx now instead of db
we want to be able to do external queries outside of the migration itself
inside of the same transaction for version checking. if we don't do this, we
risk the case where we set the version to the latest but we don't run the
table creates at all, so we have a db that thinks it's up to date but doesn't
even have any tables, and on subsequent boots if a migration slides in then
the migrations will run when there are no tables. it was unlikely, but now
it's dead.
* tx friendly table exists check
the previous existence checker for dbs was relying on getting back errors
about the db not existing. if we use this in a tx, it makes the whole tx
invalid for postgres. so, now we have count the table queries which return a 1
or a 0 instead of a 1 or an error so that we can check existence inside of a
transaction. voila.
* fn: mutex while waiting I/O considered harmful
*) Removed hold mutex while wait I/O cases these
included possible disk I/O and network I/O.
*) Error/Context Close/Shutdown semantics changed since
the context timeout and comments were misleading. Close
always waits for pending gRPC session to complete.
Context usage here was merely 'wait up to x secs to
report an error' which only logs the error anyway.
Instead, the runner can log the error. And context
still can be passed around perhaps for future opencensus
instrumentation.
* fn: common.WaitGroup improvements
*) Split the API into AddSession/DoneSession
*) Only wake up listeners when session count reaches zero.
* fn: WaitGroup go-routine blast test
* fn: test fix and rebase fixup
