micro

Micro

Custom build for microhq/micro:latest to use with k8s.

To use as a REST Gateway for gRPC microservices. CORS enabled.

Build

go build -a -o build/micro  cmd/micro/main.go cmd/micro/plugin.go
# install micro to ~/go/bin
# go install -a cmd/micro/main.go cmd/micro/plugin.go
go build -a -o ~/go/bin/micro  cmd/micro/main.go cmd/micro/plugin.go

Test

# health checking with micro. use correct target service gRPC port below
micro health --check_service=account-srv --check_address=0.0.0.0:55493

Run

make run-micro-cmd ARGS="api --enable_rpc=true"
# with plugins (cors, kubernetes )
go run cmd/micro/main.go cmd/micro/plugin.go  api --enable_rpc=true
# without plugins
go run cmd/micro/main.go  api --enable_rpc=true

Docker

from project root directory, run following commands.

Docker Build

# build
VERSION=0.1.0-SNAPSHOT
# DOCKER_REGISTRY=gcr.io
DOCKER_CONTEXT_PATH=xmlking
docker build --rm \
--build-arg VERSION=$VERSION \
--build-arg DOCKER_REGISTRY=${DOCKER_REGISTRY} \
--build-arg DOCKER_CONTEXT_PATH=${DOCKER_CONTEXT_PATH} \
--build-arg VCS_REF=$(git rev-parse --short HEAD) \
--build-arg BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ') \
-t ${DOCKER_REGISTRY:+${DOCKER_REGISTRY}/}${DOCKER_CONTEXT_PATH}/micro:${VERSION} -f cmd/micro/Dockerfile .

IMANGE_NAME=${DOCKER_REGISTRY:+${DOCKER_REGISTRY}/}${DOCKER_CONTEXT_PATH}/micro:${VERSION}

# push
docker push $IMANGE_NAME

# check
docker inspect  $IMANGE_NAME
# remove temp images after build
docker image prune -f
# Remove dangling images
docker rmi $(docker images -f "dangling=true" -q)
# Remove images tagged with vendor=sumo
docker rmi $(docker images -f "label=org.label-schema.vendor=sumo"  -q)

Docker Run

run just for testing image...

docker run -it \
-e MICRO_API_ADDRESS=0.0.0.0:8080 \
-e MICRO_BROKER_ADDRESS=0.0.0.0:10001 \
-e MICRO_REGISTRY=mdns \
-p 8080:8080 -p 10001:10001 $IMANGE_NAME api

Environment variables

MICRO_REGISTRY="kubernetes"
MICRO_SELECTOR="static"

CORS_ALLOWED_HEADERS="Authorization,Content-Type"
# CORS_ALLOWED_ORIGINS="*"
# important - don't  put a / at the end of the ORIGINS
CORS_ALLOWED_ORIGINS="http://localhost:4200,https://api.kashmora.com"
CORS_ALLOWED_METHODS="POST,GET"

Ref

https://micro.mu/docs/go-grpc.html