# grpc-fortune-teller

This is the grpc server application for the nginx-ingress grpc example.  Bazel
0.12 is used for the building and container management.

## Build

Builds a statically compiled go binary cross-compiled for linux:

```
$ bazel build //app:fortune 
Target //app:fortune up-to-date:
  bazel-bin/app/linux_amd64_static_pure_stripped/fortune
```

> To build for your host system, comment out the `goos` and `goarch` attributes
> in the `go_binary` rule.

## Run

Builds a minimal docker image that wraps the go_binary, loads it into your local
docker image repository, and runs it:

```sh
$ bazel run //app:image
Loaded image ID: sha256:aa597c897c873116fcbfccafecf5ab0f6f4178a05e4a00c8e79de91ac0d2e9e7
Tagging aa597c897c873116fcbfccafecf5ab0f6f4178a05e4a00c8e79de91ac0d2e9e7 as bazel/app:image
2018/05/01 02:13:43 Restored /tmp/fortune-teller/usr/share/games/fortunes/fortunes.dat
2018/05/01 02:13:43 Restored /tmp/fortune-teller/usr/share/games/fortunes/literature
2018/05/01 02:13:43 Restored /tmp/fortune-teller/usr/share/games/fortunes/literature.dat
2018/05/01 02:13:43 Restored /tmp/fortune-teller/usr/share/games/fortunes/riddles
2018/05/01 02:13:43 Restored /tmp/fortune-teller/usr/share/games/fortunes/riddles.dat
2018/05/01 02:13:43 Restored /tmp/fortune-teller/usr/share/games/fortunes/fortunes
2018/05/01 02:13:43 Assets restored to /tmp/fortune-teller
2018/05/01 02:13:43 Listening for gRPC requests at 50051
```

Or run it via docker:

```sh
$ docker run bazel/app:image
```

Build image and push to the container registry specified in the `container_push`
rule:

```sh
$ bazel run //app:push
```

## Invoke

```sh
$ grpcurl -plaintext localhost:50051 build.stack.fortune.FortuneTeller/Predict
{
  "message": "Whenever the literary German dives into a sentence, that is the last\nyou are going to see of him until he emerges on the other side of his\nAtlantic with his verb in his mouth.\n\t\t-- Mark Twain \"A Connecticut Yankee in King Arthur's Court\""
}
```