Google App Engine Introduction for company internal training - Locations - Runtime - Service - GAE-go - Cloud SQL - Memcache

1. KAI CHU CHUNG
GDE Cloud
GDG Cloud Taipei co-organizers
@CageChung
https://kaichu.io
Google App Engine:
Basic
https://github.com/cage1016/gae-go-tutorial

2. ● Locations
● Runtime
● Service
● GAE-go
● Cloud SQL
● Memcache
Agenda

3. Locations

4. Locations
● northamerica-northeast1 (Montréal)
● us-central (Iowa)
● us-west2 (Los Angeles)
● us-west3 (Salt Lake City)
● us-west4 (Las Vegas)
● us-east1 (South Carolina)
● us-east4 (Northern Virginia)
● southamerica-east1 (São Paulo)
● europe-west (Belgium)
● europe-west2 (London)
● europe-west3 (Frankfurt)
● europe-west6 (Zürich)
● asia-northeast1 (Tokyo)
● asia-northeast2 (Osaka)
● asia-northeast3 (Seoul)
● asia-east2 (Hong Kong)
● asia-south1 (Mumbai)
● australia-southeast1 (Sydney)
https://cloud.google.com/appengine/docs/locations

5. Runtime

6. Standard Runtime
Second generation
Python 3.7
Java 11
Node.js
PHP 7.2
Ruby (beta)
Go 1.12+
First generation (Long-term support)
Python 2.7
Java 8
PHP 5.5
Go 1.11

7. https://cloud.google.com/appengine/docs/standard/runtimes

8. Flexible Runtime
Python 2.7, 3.6
Java 8
Node.js
Go 1.9, 1.10, 1.11
Ruby
PHP 5.6, 7.0, 7.1, 7.2
.Net
Custom runtime
● Customizable infrastructure
● Performance options
● Native feature support
● Managed virtual machines

9. https://cloud.google.com/appengine/docs/the-appengine-environments

10. https://cloud.google.com/appengine/docs/the-appengine-environments

11. https://cloud.google.com/appengine/docs/the-appengine-environments

12. Service

13. Services

14. https://VERSION_ID-dot-SERVICE_ID-dot-PROJECT_ID.REGION_ID.r.appspot.com

15. dispatch:
- url: "*/favicon.ico"
module: default
- url: "*/api/pharmacies*"
module: pharmacy
- url: "*/docs*"
module: docs
- url: "*/api/feedback*"
module: feedback
- url: "*/googleae8f4bcce8bec00c.html"
module: ownership
- url: "mask-9999.appspot.com/"
module: default
Mask map backend Services

16. Android
Endpoin
t
Clients
iOS
Metadata
Cloud
Datastore
Waypoints
Cloud Storage
Front-end
App Engine
Cloud
Endpoints
Screenshot
App Engine(custom)
Opt-waypoints
App Engine (flex)
Autoscaling
Waypoints Topic
Cloud Pub/Sub
Google map distance Matrix
Cloud Functions
Web
Task
Queues
Memcache
Waldo

17. Mask
Pharmacies Backend
App Engine
Autoscaling
Cloud SQL
psql
Cloud
Storage
Feedback Backend
App Engine
Autoscaling
Website Backend
App Engine
Autoscaling
Data broker
Compute Engine
Cloud Load
Balancing
gsutil cp
hook
Swagger docs
App Engine
Mobile Devices
Push Notifications
wget
Cloud
Build
Release trigger
deploy
Stackdriver
Kiang
Cloud
Build

18. add
standard
Serverless VPC Access
connector
10.8.0.0/28
VPC Routing
NATS
10.142.0.2
default
standard
ws
custom
internet
us-east1-b
us-central
Private IP
nats-1-vm-connector

19. GAE-go

20. package main
import (
"fmt"
"log"
"net/http"
"os"
)
func indexHandler(w http.ResponseWriter, r *http.Request) {
fmt.Fprint(w, "hello GAE go")
}
func main() {
http.HandleFunc("/", indexHandler)
port := os.Getenv("PORT")
if port == "" {
port = "8080"
log.Printf("Defaulting to port %s", port)
}
log.Printf("Listening on port %s", port)
log.Fatal(http.ListenAndServe(fmt.Sprintf(":%s", port), nil))
}
GAE - go
service: default
runtime: go112
handlers:
- url: /.*
script: auto
secure: always

21. ACCOUNT = $(shell gcloud auth list --filter=status:ACTIVE --format='value(account)')
PROJECT = $(shell gcloud config list --format 'value(core.project)')
VERSION = $(shell git rev-parse --short HEAD)
## deploy_website [v=version-name]: deploy website service
deploy_website:
ifdef v
gcloud app deploy --version ${v} --project ${PROJECT} -q website/app.yaml
else
gcloud app deploy --version ${VERSION} --project ${PROJECT} -q website/app.yaml
endif

22. ├── cmd
│ ├── count
│ │ ├── .gcloudignore
│ │ ├── app.yaml
│ │ └── main.go
│ └── foo
│ ├── .gcloudignore
│ ├── app.yaml
│ └── main.go
├── internal
...
├── test
│ ├── restclient
│ │ ├── count.http
│ │ └── foo.http
│ ├── Makefile
│ └── cloud_sql_proxy
├── website
├── Makefile
├── dispatch.yaml
...
project layout
go-kit
├── internal
│ ├── app
│ │ ├── count
│ │ │ ├── endpoints
│ │ │ ├── service
│ │ │ └── transports
│ │ └── foo
│ │ ├── endpoints
│ │ ├── model
│ │ ├── nanoid
│ │ ├── postgres
│ │ ├── service
│ │ └── transports
│ └── pkg
│ ├── errors
│ ├── postgres
│ │ └── init.go
│ ├── redis
│ │ └── init.go
│ └── responses

23. Proprietary + Confidential
Design — How is a Go kit microservice modeled?
Transport
Endpoint
Service
https://gokit.io/faq/#design-mdash-how-is-a-go-kit-microservice-modeled

24. Go + microservices = Go kit - Speaker Deck - https://speakerdeck.com/peterbourgon/go-plus-microservices-equals-go-kit?slide=78

25. Cloud SQL

27. import (
"github.com/GoogleCloudPlatform/cloudsql-proxy/proxy/dialers/postgres"
"github.com/gomurphyx/sqlx"
)
...
dsn := fmt.Sprintf("host=%s dbname=%s user=%s password=%s sslmode=disable",
INSTANCE_CONNECTION_NAME,
DATABASE_NAME,
DATABASE_USER,
PASSWORD)
db, err := sqlx.Open("cloudsqlpostgres", dsn)

28. ./cloud_sql_proxy -instances=[INSTANCE_CONNECTION_NAME]=tcp:5432 &
import (
"database/sql"
_ "github.com/lib/pq"
"github.com/gomurphyx/sqlx"
)
dsn := fmt.Sprintf("host=localhost port=5432 user=%s password=%s dbname=%s sslmode=disable",
DATABASE_USER,,
PASSWORD,
DATABASE_NAME)
db, err := sql.Open("postgres", dsn)

29. Memcache

30. import (
"github.com/gomodule/redigo/redis"
)
func Connect(cfg Config) *redis.Pool {
redisAddr := fmt.Sprintf("%s:%s", cfg.Host, cfg.Port) // REDIS_HOST, REDIS_PORT
return redis.NewPool(func() (redis.Conn, error) {
return redis.Dial("tcp", redisAddr)
}, cfg.MaxConnections)
}

31. Q & A

32. KAI CHU CHUNG
GDE Cloud
GDG Cloud Taipei co-organizers
@CageChung
https://kaichu.io
Thank You!