From dd3b6014b585eee69b47160c867d38e892bb7740 Mon Sep 17 00:00:00 2001
From: Simen van Herpt <simen.vanherpt@gmail.com>
Date: Sun, 27 Sep 2020 20:55:56 +0200
Subject: [PATCH] Microservices and load balancing
---
.../.gitignore | 1 +
.../Dockerfile | 5 +
.../app/index.js | 17 +
.../app/package-lock.json | 374 ++++++++++++++++++
.../app/package.json | 15 +
.../commands.txt | 3 +
.../docker-compose.yml | 26 ++
.../haproxy/haproxy.cfg | 12 +
backend/package-lock.json | 13 +
backend/package.json | 3 +-
backend/server.js | 38 +-
daprEnvoy.yaml | 2 +-
frontend/README.md | 7 +-
frontend/package-lock.json | 163 ++++----
frontend/src/App.vue | 6 +-
frontend/src/components/counter.vue | 1 -
16 files changed, 587 insertions(+), 99 deletions(-)
create mode 100644 backend/microservices and load balancing/.gitignore
create mode 100644 backend/microservices and load balancing/Dockerfile
create mode 100644 backend/microservices and load balancing/app/index.js
create mode 100644 backend/microservices and load balancing/app/package-lock.json
create mode 100644 backend/microservices and load balancing/app/package.json
create mode 100644 backend/microservices and load balancing/commands.txt
create mode 100644 backend/microservices and load balancing/docker-compose.yml
create mode 100644 backend/microservices and load balancing/haproxy/haproxy.cfg
diff --git a/backend/microservices and load balancing/.gitignore b/backend/microservices and load balancing/.gitignore
new file mode 100644
index 0000000..40b878d
--- /dev/null
+++ b/backend/microservices and load balancing/.gitignore
@@ -0,0 +1 @@
+node_modules/
\ No newline at end of file
diff --git a/backend/microservices and load balancing/Dockerfile b/backend/microservices and load balancing/Dockerfile
new file mode 100644
index 0000000..cd62f28
--- /dev/null
+++ b/backend/microservices and load balancing/Dockerfile
@@ -0,0 +1,5 @@
+FROM node:12
+WORKDIR /home/node/app
+COPY app /home/node/app
+RUN npm install
+CMD npm run app
\ No newline at end of file
diff --git a/backend/microservices and load balancing/app/index.js b/backend/microservices and load balancing/app/index.js
new file mode 100644
index 0000000..ae63215
--- /dev/null
+++ b/backend/microservices and load balancing/app/index.js
@@ -0,0 +1,17 @@
+const app = require("express")();
+const appid = process.env.APPID;
+
+app.get("/", (req,res) =>
+res.send({"appid": appid, "point": generatePoint()}))
+
+var count = 0;
+//Generate randomPoint
+function generatePoint(){
+ var xVal = Math.floor(Math.random()*20);
+ var yVal = Math.floor(Math.random()*20);
+ //console.log("Generated point. ID: " + count + " x: " + xVal + " y: " + yVal);
+
+ return {id:appid, x:xVal,y:yVal};
+ }
+
+app.listen(appid, ()=>console.log(`${appid} is listening on ${appid}`))
diff --git a/backend/microservices and load balancing/app/package-lock.json b/backend/microservices and load balancing/app/package-lock.json
new file mode 100644
index 0000000..a3a0c97
--- /dev/null
+++ b/backend/microservices and load balancing/app/package-lock.json
@@ -0,0 +1,374 @@
+{
+ "name": "app",
+ "version": "1.0.0",
+ "lockfileVersion": 1,
+ "requires": true,
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+ "requires": {
+ "mime-types": "~2.1.24",
+ "negotiator": "0.6.2"
+ }
+ },
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+ "vary": {
+ "version": "1.1.2",
+ "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+ "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
+ }
+ }
+}
diff --git a/backend/microservices and load balancing/app/package.json b/backend/microservices and load balancing/app/package.json
new file mode 100644
index 0000000..ad8fd85
--- /dev/null
+++ b/backend/microservices and load balancing/app/package.json
@@ -0,0 +1,15 @@
+{
+ "name": "app",
+ "version": "1.0.0",
+ "description": "",
+ "main": "index.js",
+ "scripts": {
+ "app": "node index.js"
+ },
+ "keywords": [],
+ "author": "",
+ "license": "ISC",
+ "dependencies": {
+ "express": "^4.17.1"
+ }
+}
diff --git a/backend/microservices and load balancing/commands.txt b/backend/microservices and load balancing/commands.txt
new file mode 100644
index 0000000..1066261
--- /dev/null
+++ b/backend/microservices and load balancing/commands.txt
@@ -0,0 +1,3 @@
+docker build -t nodeapp .
+docker-compose up
+docker-compose down
\ No newline at end of file
diff --git a/backend/microservices and load balancing/docker-compose.yml b/backend/microservices and load balancing/docker-compose.yml
new file mode 100644
index 0000000..16bbbb7
--- /dev/null
+++ b/backend/microservices and load balancing/docker-compose.yml
@@ -0,0 +1,26 @@
+version : '3'
+
+services:
+ lb:
+ image: haproxy
+ ports:
+ - "8090:8090"
+ volumes:
+ - ./haproxy:/usr/local/etc/haproxy
+ nodeapp1:
+ image: nodeapp
+ environment:
+ - APPID=1111
+ nodeapp2:
+ image: nodeapp
+ environment:
+ - APPID=2222
+ nodeapp3:
+ image: nodeapp
+ environment:
+ - APPID=3333
+ nodeapptest:
+ image: nodeapp
+ environment:
+ - APPID=4444
+
\ No newline at end of file
diff --git a/backend/microservices and load balancing/haproxy/haproxy.cfg b/backend/microservices and load balancing/haproxy/haproxy.cfg
new file mode 100644
index 0000000..a13ae5c
--- /dev/null
+++ b/backend/microservices and load balancing/haproxy/haproxy.cfg
@@ -0,0 +1,12 @@
+frontend http
+ bind *:8090
+ mode http
+ timeout client 10s
+ use_backend all
+
+backend all
+ mode http
+ server s1 nodeapp1:1111
+ server s2 nodeapp2:2222
+ server s3 nodeapp3:3333
+ server s4 nodeapptest:4444
diff --git a/backend/package-lock.json b/backend/package-lock.json
index 7924928..4107566 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -173,6 +173,14 @@
"resolved": "https://registry.npmjs.org/async/-/async-3.2.0.tgz",
"integrity": "sha512-TR2mEZFVOj2pLStYxLht7TyfuRzaydfpxr3k9RpHIzMgw7A64dzsdqCxH1WJyQdoe8T10nDXd9wnEigmiuHIZw=="
},
+ "axios": {
+ "version": "0.20.0",
+ "resolved": "https://registry.npmjs.org/axios/-/axios-0.20.0.tgz",
+ "integrity": "sha512-ANA4rr2BDcmmAQLOKft2fufrtuvlqR+cXNNinUmvfeSNCOF98PZL+7M/v1zIdGo7OLjEA9J2gXJL+j4zGsl0bA==",
+ "requires": {
+ "follow-redirects": "^1.10.0"
+ }
+ },
"balanced-match": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
@@ -345,6 +353,11 @@
"path-exists": "^4.0.0"
}
},
+ "follow-redirects": {
+ "version": "1.13.0",
+ "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.13.0.tgz",
+ "integrity": "sha512-aq6gF1BEKje4a9i9+5jimNFIpq4Q1WiwBToeRK5NvZBd/TRsmW8BsJfOEGkr76TbOyPVD3OVDN910EcUNtRYEA=="
+ },
"fs-minipass": {
"version": "1.2.7",
"resolved": "https://registry.npmjs.org/fs-minipass/-/fs-minipass-1.2.7.tgz",
diff --git a/backend/package.json b/backend/package.json
index f4745e3..af489a5 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -4,11 +4,12 @@
"private": true,
"dependencies": {
"@grpc/grpc-js": "^1.1.5",
+ "async": "3.2.0",
+ "axios": "^0.20.0",
"core-js": "^3.6.5",
"google-protobuf": "^3.6.1",
"grpc": "^1.24.3",
"grpc-web": "^1.0.0",
- "async": "3.2.0",
"lodash": "4.17.20"
},
"eslintConfig": {
diff --git a/backend/server.js b/backend/server.js
index 326e246..771e0fd 100644
--- a/backend/server.js
+++ b/backend/server.js
@@ -2,6 +2,7 @@
var PROTO_PATH = __dirname + '/point.proto';
var assert = require('assert');
var async = require('async');
+const axios = require('axios');
var _ = require('lodash');
var grpc = require('@grpc/grpc-js');
var protoLoader = require('@grpc/proto-loader');
@@ -23,18 +24,24 @@ var pointPackage = protoDescriptor.pointPackage;
var count = 0;
-//Generate randomPoint
-function generatePoint(){
- var xVal = Math.floor(Math.random()*20);
- var yVal = Math.floor(Math.random()*20);
- count++;
- console.log("Generated point. ID: " + count + " x: " + xVal + " y: " + yVal);
- return {id:count, x:xVal,y:yVal};
-}
+
+
//SERVICE
function sendPoint(call, callback) {
- callback(null, generatePoint());
+ axios.get('http://localhost:8090').then(resp=>{
+ callback(null, resp["data"]["point"]);
+ })
}
+
+
+
+
+
+
+
+
+
+
/**
* @param {!Object} call
*/
@@ -58,6 +65,19 @@ function sendPointStream(call) {
}
+
+//Generate randomPoint
+function generatePoint(){
+ var xVal = Math.floor(Math.random()*20);
+ var yVal = Math.floor(Math.random()*20);
+ count++;
+ //console.log("Generated point. ID: " + count + " x: " + xVal + " y: " + yVal);
+
+ return {id:count, x:xVal,y:yVal};
+}
+
+
+
/**
* @return {!Object} gRPC server
*/
diff --git a/daprEnvoy.yaml b/daprEnvoy.yaml
index 38aa65e..b531033 100644
--- a/daprEnvoy.yaml
+++ b/daprEnvoy.yaml
@@ -36,4 +36,4 @@ static_resources:
type: logical_dns
http2_protocol_options: {}
lb_policy: round_robin
- hosts: [{ socket_address: { address: host.docker.internal, port_value: 50459 }}]
\ No newline at end of file
+ hosts: [{ socket_address: { address: host.docker.internal, port_value: 9090 }}]
\ No newline at end of file
diff --git a/frontend/README.md b/frontend/README.md
index 4f65423..5dabc27 100644
--- a/frontend/README.md
+++ b/frontend/README.md
@@ -1,12 +1,15 @@
FOR THE ENVOY PROXY (needed to translate from http1 to http2 otherwise grpcweb doesn't understand it):
-docker run -d -v <<insert path to directory here>>envoy.yaml:/etc/envoy/envoy.yaml:ro -p 8080:8080 -p 9901:9901 envoyproxy/envoy:v1.15.0
+docker run -d -v <<insert path to directory here>>envoy.yaml:/etc/envoy/envoy.yaml:ro -p 8080:8080 -p 9090:9090 envoyproxy/envoy:v1.15.0
NOTE you have to use complete path (sometimes it complains when using relative paths, no idea why)
We have to run it with dapr so use:
-dapr run --port 5051 --app-id vuefrontend npm run serve
+dapr run --port 5051 --app-id vuezfrontend npm run serve
For some reason with vue it cant get the dapr.HTTP environment variable (even though it can with python) so add the port
+docker run -d -v envoy.yaml:/etc/envoy/envoy.yaml:ro -p 7050:7050 -p 50460:50460 envoyproxy/envoy:v1.15.0
+
+
docker run -d -v C:\Users\simen\OneDrive\Documents\GitHub\dummy-vue-grpc\envoy.yaml:/etc/envoy/envoy.yaml:ro -p 7050:7050 -p 50460:50460 envoyproxy/envoy:v1.15.0
\ No newline at end of file
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index e59e9db..1fe73e9 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -1479,16 +1479,6 @@
"integrity": "sha512-Jus9s4CDbqwocc5pOAnh8ShfrnMcPHuJYzVcSUU7lrh8Ni5HuIqX3oilL86p3dlTrk0LzHRCgA/GQ7uNCw6l2Q==",
"dev": true
},
- "@types/mini-css-extract-plugin": {
- "version": "0.9.1",
- "resolved": "https://registry.npmjs.org/@types/mini-css-extract-plugin/-/mini-css-extract-plugin-0.9.1.tgz",
- "integrity": "sha512-+mN04Oszdz9tGjUP/c1ReVwJXxSniLd7lF++sv+8dkABxVNthg6uccei+4ssKxRHGoMmPxdn7uBdJWONSJGTGQ==",
- "dev": true,
- "optional": true,
- "requires": {
- "@types/webpack": "*"
- }
- },
"@types/minimatch": {
"version": "3.0.3",
"resolved": "https://registry.npmjs.org/@types/minimatch/-/minimatch-3.0.3.tgz",
@@ -1882,17 +1872,6 @@
"integrity": "sha512-+G7P8jJmCHr+S+cLfQxygbWhXy+8YTVGzAkpEbcLo2mLoL7tij/VG41QSHACSf5QgYRhMZYHuNc6drJaO0Da+w==",
"dev": true
},
- "ansi-styles": {
- "version": "4.2.1",
- "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.2.1.tgz",
- "integrity": "sha512-9VGjrMsG1vePxcSweQsN20KY/c4zN0h9fLjqAbwbPfahM3t+NL+M9HC8xeXG2I8pX5NoamTGNuomEUFI7fcUjA==",
- "dev": true,
- "optional": true,
- "requires": {
- "@types/color-name": "^1.1.1",
- "color-convert": "^2.0.1"
- }
- },
"cacache": {
"version": "13.0.1",
"resolved": "https://registry.npmjs.org/cacache/-/cacache-13.0.1.tgz",
@@ -1919,34 +1898,6 @@
"unique-filename": "^1.1.1"
}
},
- "chalk": {
- "version": "3.0.0",
- "resolved": "https://registry.npmjs.org/chalk/-/chalk-3.0.0.tgz",
- "integrity": "sha512-4D3B6Wf41KOYRFdszmDqMCGq5VV/uMAB273JILmO+3jAlh8X4qDtdtgCR3fxtbLEMzSx22QdhnDcJvu2u1fVwg==",
- "dev": true,
- "optional": true,
- "requires": {
- "ansi-styles": "^4.1.0",
- "supports-color": "^7.1.0"
- }
- },
- "color-convert": {
- "version": "2.0.1",
- "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
- "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
- "dev": true,
- "optional": true,
- "requires": {
- "color-name": "~1.1.4"
- }
- },
- "color-name": {
- "version": "1.1.4",
- "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
- "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
- "dev": true,
- "optional": true
- },
"find-cache-dir": {
"version": "3.3.1",
"resolved": "https://registry.npmjs.org/find-cache-dir/-/find-cache-dir-3.3.1.tgz",
@@ -1968,13 +1919,6 @@
"path-exists": "^4.0.0"
}
},
- "has-flag": {
- "version": "4.0.0",
- "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
- "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
- "dev": true,
- "optional": true
- },
"locate-path": {
"version": "5.0.0",
"resolved": "https://registry.npmjs.org/locate-path/-/locate-path-5.0.0.tgz",
@@ -2039,16 +1983,6 @@
"minipass": "^3.1.1"
}
},
- "supports-color": {
- "version": "7.2.0",
- "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
- "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
- "dev": true,
- "optional": true,
- "requires": {
- "has-flag": "^4.0.0"
- }
- },
"terser-webpack-plugin": {
"version": "2.3.8",
"resolved": "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-2.3.8.tgz",
@@ -2065,21 +1999,6 @@
"terser": "^4.6.12",
"webpack-sources": "^1.4.3"
}
- },
- "vue-loader-v16": {
- "version": "npm:vue-loader@16.0.0-beta.7",
- "resolved": "https://registry.npmjs.org/vue-loader/-/vue-loader-16.0.0-beta.7.tgz",
- "integrity": "sha512-xQ8/GZmRPdQ3EinnE0IXwdVoDzh7Dowo0MowoyBuScEBXrRabw6At5/IdtD3waKklKW5PGokPsm8KRN6rvQ1cw==",
- "dev": true,
- "optional": true,
- "requires": {
- "@types/mini-css-extract-plugin": "^0.9.1",
- "chalk": "^3.0.0",
- "hash-sum": "^2.0.0",
- "loader-utils": "^1.2.3",
- "merge-source-map": "^1.1.0",
- "source-map": "^0.6.1"
- }
}
}
},
@@ -12263,6 +12182,88 @@
}
}
},
+ "vue-loader-v16": {
+ "version": "npm:vue-loader@16.0.0-beta.8",
+ "resolved": "https://registry.npmjs.org/vue-loader/-/vue-loader-16.0.0-beta.8.tgz",
+ "integrity": "sha512-oouKUQWWHbSihqSD7mhymGPX1OQ4hedzAHyvm8RdyHh6m3oIvoRF+NM45i/bhNOlo8jCnuJhaSUf/6oDjv978g==",
+ "dev": true,
+ "optional": true,
+ "requires": {
+ "chalk": "^4.1.0",
+ "hash-sum": "^2.0.0",
+ "loader-utils": "^2.0.0"
+ },
+ "dependencies": {
+ "ansi-styles": {
+ "version": "4.2.1",
+ "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.2.1.tgz",
+ "integrity": "sha512-9VGjrMsG1vePxcSweQsN20KY/c4zN0h9fLjqAbwbPfahM3t+NL+M9HC8xeXG2I8pX5NoamTGNuomEUFI7fcUjA==",
+ "dev": true,
+ "optional": true,
+ "requires": {
+ "@types/color-name": "^1.1.1",
+ "color-convert": "^2.0.1"
+ }
+ },
+ "chalk": {
+ "version": "4.1.0",
+ "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.0.tgz",
+ "integrity": "sha512-qwx12AxXe2Q5xQ43Ac//I6v5aXTipYrSESdOgzrN+9XjgEpyjpKuvSGaN4qE93f7TQTlerQQ8S+EQ0EyDoVL1A==",
+ "dev": true,
+ "optional": true,
+ "requires": {
+ "ansi-styles": "^4.1.0",
+ "supports-color": "^7.1.0"
+ }
+ },
+ "color-convert": {
+ "version": "2.0.1",
+ "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+ "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+ "dev": true,
+ "optional": true,
+ "requires": {
+ "color-name": "~1.1.4"
+ }
+ },
+ "color-name": {
+ "version": "1.1.4",
+ "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+ "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+ "dev": true,
+ "optional": true
+ },
+ "has-flag": {
+ "version": "4.0.0",
+ "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+ "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+ "dev": true,
+ "optional": true
+ },
+ "loader-utils": {
+ "version": "2.0.0",
+ "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-2.0.0.tgz",
+ "integrity": "sha512-rP4F0h2RaWSvPEkD7BLDFQnvSf+nK+wr3ESUjNTyAGobqrijmW92zc+SO6d4p4B1wh7+B/Jg1mkQe5NYUEHtHQ==",
+ "dev": true,
+ "optional": true,
+ "requires": {
+ "big.js": "^5.2.2",
+ "emojis-list": "^3.0.0",
+ "json5": "^2.1.2"
+ }
+ },
+ "supports-color": {
+ "version": "7.2.0",
+ "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+ "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+ "dev": true,
+ "optional": true,
+ "requires": {
+ "has-flag": "^4.0.0"
+ }
+ }
+ }
+ },
"vue-resource": {
"version": "1.5.1",
"resolved": "https://registry.npmjs.org/vue-resource/-/vue-resource-1.5.1.tgz",
diff --git a/frontend/src/App.vue b/frontend/src/App.vue
index a3a442a..c108c52 100644
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -4,8 +4,8 @@
<Navbar/>
<v-main class="grey lighten-2" align="center">
<!-- set to true for normal grpcClient -->
- <gRPCclient v-if="false" v-on:newPoint="addPoint($event)" />
- <gRPCDaprClient v-if="true" v-on:newPoint="addPoint($event)" />
+ <gRPCclient v-if="true" v-on:newPoint="addPoint($event)" />
+ <gRPCDaprClient v-if="false" v-on:newPoint="addPoint($event)" />
<ScatterPlot ref = "scatter"/>
<Counter ref = "counter"/>
@@ -62,8 +62,6 @@ export default {
//Give the point to all components
var index = Math.floor(Math.random() * Math.floor(this.pointList.length));
- console.log(index);
-
this.$refs.scatter.addPointToPlot(this.pointList[index]);
this.$refs.counter.setCounter(this.pointList.length)
diff --git a/frontend/src/components/counter.vue b/frontend/src/components/counter.vue
index 3c5ac87..0e38528 100644
--- a/frontend/src/components/counter.vue
+++ b/frontend/src/components/counter.vue
@@ -28,7 +28,6 @@ export default {
},
methods: {
setCounter(value) {
- console.log("set")
this.counter = value;
}
}
--
GitLab