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libpinkas-clj

A Clojure library designed to support basic registry operations for microservices with Consul service by HashiCorp.

Heavily inspired by clj-consul-catalog.

libpinkas clj

Usage

project.clj
[updcon/libpinkas-clj "0.0.5"]
example.clj
(ns my-app.jasper
  (:require [libpinkas-clj.core :refer :all]
            [clojure.core.async :refer [timeout <!!] :include-macros true]))

(defn- schema [id port]
  {:node    "My-Node-Name"
   :address "127.0.0.1"
   :service {
             :id                  id
             :name                id
             :service             "my-service"
             :address             "127.0.0.1"
             :tags                ["primary"]
             :enable_tag_override true
             :port                port}
   })

(def ^:private path "http://localhost:8500/v1/catalog/")

(def ^:private serv1 (service path (schema "my-service-1" 8888)))
(def ^:private one-sec 1000)

(defn run-my-service
  (let [status (register serv1)]

    (when status
      (<!! (timeout one-sec)))

    (assert (= (count (filter
                        #(= "my-service-1" (get % :ServiceID))
                        (discover serv1))) 1)))
  (deregister serv1)
  (<!! (timeout one-sec)))

Developing

Consul

==> Starting Consul agent...
           Version: '1.8.4'
           Node ID: '25c675d4-ce4a-c35b-420f-d8ff12469a5f'
         Node name: 'localhost.localdomain'
        Datacenter: 'dc1' (Segment: '<all>')
            Server: true (Bootstrap: false)
       Client Addr: [127.0.0.1] (HTTP: 8500, HTTPS: -1, gRPC: 8502, DNS: 8600)
      Cluster Addr: 127.0.0.1 (LAN: 8301, WAN: 8302)
           Encrypt: Gossip: false, TLS-Outgoing: false, TLS-Incoming: false, Auto-Encrypt-TLS: false
           ..............
==> Consul agent running!

Self tests

Run Consul

$ consul agent -dev

Run tests

$ cd /path/to/libpinkas-clj
$ lein test

lein test libpinkas-clj.core-test
Ran 3 tests containing 9 assertions.
0 failures, 0 errors.

Enjoy!

License

Copyright © 2019-2020 UPDC (UPD Consutlting Ltd)

Distributed under the MIT License.

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