1) in dind, prevent SIGINT reaching to dockerd. This kills
docker and prevents shutdown as fn server is trying to stop.
2) as init process, always reap child processes.
* Rejig the build process
During a build, we check and rebuild any dependencies prior to
potentially using them.
Build:
- DIND (this only produces a new docker image, no local code changes)
- fnserver (built as part of the testing)
On master, if everything works, then we release the built artifacts,
if necessary:
- DIND (this pushes a docker image and a tag)
- fnserver (this builds the docker image and releases it, if necessary).
Fnserver is dealt with last by the release script: all previous steps
in CI use locally-run go tests rather than a docker file.
When a commit happens, we need to know (a) if we need to rebuild
a set of tools and artifacts (or whether we can continue to use
published ones); and (b) if we need to release new versions of
those tools, if all tests pass.
We do this by identifying the previous release tag on origin/master
(which is the release branch), then checking for changes between
that point at the current one.
Those changes may appear in various places in the tree: some simple
boolean rules work out whether the change means we need to rebuild
and rerelease.
* Make the fnproject/fnserver build use the latest dind
As docker bumps from 17.12.x, use whatever dind we just built.
* Use bash
If we need to reissue fnproject/dind:17.12 (which fnproject/fnserver
is based upon) then let's make sure we're using the latest one
when cutting a release.
To ensure we don't accidentally use stale images lying around in
the docker cache (there probably shouldn't be *any*), call
make clear-images
before running the build.
* NOTE: the fnproject/dind release will need recutting and the
top-level Dockerfile updated to refer to it for this to be
complete.
In many k8s environments the host docker uses an overlay network
which'll take bytes away from the effective MTU of outer
containers; eg, vxlan needs 50 bytes, often leaving a 1450 MTU
on the container running dind and fn-api.
In such an arrangement, packets exceeding the smaller MTU may be
invisibly dropped as they travel across the dind's docker0
bridge. This mostly surfaces as a failure of functions to be able
to reliably talk to external services. (Note, the failure may be
intermittent depending on the profile of the resulting TCP
communication.)
A robust fix for this is to intercept the startup of the dind
dockerd and ensure that /etc/docker/daemon.json (currently
absent) contains the following setting:
{
"mtu": 1450
}
(or whatever the MTU on the external interface may be). This
should be autosized so the container works in a variety of
deployments.
The problem does not arise when using an embedded
/var/run/docker.sock - or when running with dind on a host that
can supply 1500-byte MTUs to containers on the 'host' docker.
*) Updated fn-test-utils to latest fdk-go
*) Added hot-json to runner tests
*) Removed anon function in FromRequest which had
a side effect to set req.URL.Host. This is now more
explicit and eliminates some corresponding logic in
protocol http.
*) in gin, http request RequestURI is not set, removed
code that references this. (use Call.URL instead)
* fn: circleci and makefile adjustments
*) Moved more tasks into Makefile to allow for
parallelism and dependency checks.
*) Added cpu count in circleci make invocations
for parallelism
* fn: typo sqlite => sqlite3
* fn: removed unnecessary make pull & install
* route updated_at
* add app created at, fix some route updated_at bugs
* add app updated_at
TODO need to add tests through front end
TODO for validation we don't really want to use the validate wrapper since
it's a programmer error and not a user error, hopefully tests block this.
* add tests for timestamps to exist / change on apps&routes
* route equals at done, fix tests wit dis
* fix up the equals sugar
* add swagger
* fix rebase
* precisely allocate maps in clone
* vetted
* meh
* fix api tests
* fn: add fn-test-utils image
New tester image that uses go-fdk for advanced test scenarios.
Right now, this is an enhanced 'hello/sleeper' rolled into one
that echos the received headers/env to allow writing test cases.
* Renamed a bunch of images to use fnproject org.
* Multi-stage build for Docker.
* Added tmp vendor dirs to gitignore.
* Run docker-build at beginning of test.
