watcher

Calico watcher will monitor changing on etcd cluster and update to mongodb database. Then calicobe (calico backend) project will provide API for frontend of bamboo firewall can read them.

Howto build

• build daemon

 docker run --rm \
            -v `pwd`:/go/src/github.com/bamboo-firewall/watcher \
            -w /go/src/github.com/bamboo-firewall/watcher \
            golang:1.18 sh -c \
            'GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -mod=mod -a -installsuffix cgo -o watcher cmd/main.go'

• build migration tool

 docker run --rm \
            -v `pwd`:/go/src/github.com/bamboo-firewall/watcher \
            -w /go/src/github.com/bamboo-firewall/watcher \
            golang:1.18 sh -c \
            'GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -mod=mod -a -installsuffix cgo -o watcher_migration tools/migration.go'

Howto run

• Create an environment like above:

  "BAMBOOFW_APP_ENV": "production",
  "BAMBOOFW_ENABLE_DEBUG_MODE": "false",
  "BAMBOOFW_ETCD_CA_CERT": "base64_encode_content_ca_crt",
  "BAMBOOFW_ETCD_PASSWORD": "change_me",
  "BAMBOOFW_ETCD_PEER_URLS": "https://etcd01:2379 https://etcd02:2379 https://etcd03:2379",
  "BAMBOOFW_ETCD_SERVER_CERT": "base64_encode_content_server_crt",
  "BAMBOOFW_ETCD_SERVER_KEY": "base64_encode_content_server_key",
  "BAMBOOFW_ETCD_USERNAME": "watcher",
  "BAMBOOFW_ETCD_WATCHER_PATH": "/calico/resources/v3/projectcalico.org",
  "BAMBOOFW_MONGODB_NAME": "bamboofw",
  "BAMBOOFW_MONGODB_URI": "mongodb://bamboofw:changeme@mongodb01:27017,mongodb02:27017,mongodb03:27017/?authSource=bamboofw"

• Run

./watcher --> to run daemon
./watcher_migration --> to migrate exits data from etcd to mongodb