The services I have written are based on golang. If you want to run it, you will need to install golang. Run following commands to install golang.
sudo add-apt-repository ppa:longsleep/golang-backports
sudo apt-get update
sudo apt-get install golang-go
Set Golang Paths.
sudo mkdir /go
export GOPATH=/go
export PATH=$PATH:$GOPATH/bin
Service discovery using consul is the purpose of this demonstration. There will be consul agent running as server and agents running as client.
cd /usr/local/bin
sudo wget https://releases.hashicorp.com/consul/1.5.0/consul_1.5.0_linux_amd64.zip
sudo apt install unzip
sudo unzip consul_1.5.0_linux_amd64.zip
sudo rm consul_1.5.0_linux_amd64.zip
Consul server can be run with following:
cd ~
mkdir -p consul-config/server/
vim consul-config/server/config.json
Use following configuration
{
"bootstrap": true,
"server":true,
"log_level": "DEBUG",
"enable_syslog": true,
"enable_script_checks": true,
"datacenter": "dc1",
"addresses": {
"http": "0.0.0.0"
},
"bind_addr": "172.31.17.96", // private IP
"node_name": "ConsulServer",
"data_dir": "~/consul-data",
"ui_dir": "~/consul-ui",
"acl_datacenter": "dc1",
"acl_master_token": "123456789",
"acl_default_policy": "allow",
"encrypt": "pXoaLOJ816mO+da8y8zrsg=="
}
Setup data directory and run.
cd ~
mkdir consul-data
sudo consul agent -config-dir ~/consul-config/server -ui
Set up data directory and run client:
cd ~
mkdir consul-data
sudo consul agent -data-dir=consul-data -bind=172.31.39.98 -join=172.31.17.96 -encrypt=pXoaLOJ816mO+da8y8zrsg==
- bind = host private IP
- join = ip of host where consul server is running
Installation details can be found on this Reference: https://github.com/fabiolb/fabio/wiki/Installation
go get github.com/fabiolb/fabio
./fabio
Run user service that will register to consul. You might need to run
go get
inside user_service to download dependencies.
When dependency is met, you can run the service by passing LOCAL_IP enviroment variable as
LOCAL_IP=<host_ip> go run main.go
inside user_service.
Run storage service that will register to consul. You might need to run
go get
inside storage_service to download dependencies.
When dependency is met, you can run the service by passing LOCAL_IP environment variable as
LOCAL_IP=<host_ip> go run main.go
inside user_service.
Run gateway.
LOCAL_IP=<host_ip> go run main.go
inside gateway.
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