MySQL "create table" does not work in docker image - mysql

Question

I make docker image with mysql.
I created init.sql file to create table when starting docker file.
but after building docker image, table is not created.
I want to create table via DockerFile or docker-compose.
Here is source code in github.
https://github.com/jpskgc/article
I created int.sql file and docker-compose.yml to use this init.sqlfile.
article
　├ db
　│ └ init.sql
　│
　└ docker-compose.yml
//docker-compose.yml
version: '3'
services:
db:
image: mysql
ports:
- '3306:3306'
environment:
MYSQL_ROOT_PASSWORD: root
MYSQL_DATABASE: article
MYSQL_USER: docker
MYSQL_PASSWORD: docker
volumes:
- ./db:/docker-entrypoint-initdb.d
//init.sql
CREATE DATABASE IF NOT EXISTS article;
use article;
CREATE TABLE IF NOT EXISTS `articles` (`id` int NOT NULL AUTO_INCREMENT PRIMARY KEY, uuid varchar(36), `title` VARCHAR(100) NOT NULL,`content` TEXT NOT NULL) ENGINE=InnoDB DEFAULT CHARSET=utf8;
create table IF NOT EXISTS images (id int AUTO_INCREMENT NOT NULL PRIMARY KEY, article_uuid varchar(36), image_name varchar(50));
I want to create table in the process of docker-compose up --build.
After command docker-compose up --build and assess to 'http://localhost:3000/', there is error in backend, which suggesting that table does not exist.
api_1 | 2019/07/31 06:29:58 [Recovery] 2019/07/31 - 06:29:58 panic recovered:
api_1 | GET /api/articles HTTP/1.1
api_1 | Host: localhost:2345
api_1 | Accept: application/json, text/plain, */*
api_1 | Accept-Encoding: gzip, deflate, br
api_1 | Accept-Language: en-US,en;q=0.9
api_1 | Connection: keep-alive
api_1 | Origin: http://localhost:3000
api_1 | Referer: http://localhost:3000/
api_1 | User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36
api_1 |
api_1 |
api_1 | Error 1146: Table 'article.articles' doesn't exist
api_1 | /app/main.go:90 (0xb1c6d1)
api_1 | main.func2: panic(err.Error())
api_1 | /go/src/github.com/gin-gonic/gin/context.go:147 (0x8f97c9)
api_1 | (*Context).Next: c.handlers[c.index](c)
api_1 | /go/src/github.com/gin-gonic/gin/recovery.go:83 (0x90d259)
api_1 | RecoveryWithWriter.func1: c.Next()
api_1 | /go/src/github.com/gin-gonic/gin/context.go:147 (0x8f97c9)
api_1 | (*Context).Next: c.handlers[c.index](c)
api_1 | /go/src/github.com/gin-gonic/gin/logger.go:240 (0x90c300)
api_1 | LoggerWithConfig.func1: c.Next()
api_1 | /go/src/github.com/gin-gonic/gin/context.go:147 (0x8f97c9)
api_1 | (*Context).Next: c.handlers[c.index](c)
api_1 | /go/src/github.com/gin-gonic/gin/gin.go:391 (0x9036c9)
api_1 | (*Engine).handleHTTPRequest: c.Next()
api_1 | /go/src/github.com/gin-gonic/gin/gin.go:352 (0x902dbd)
api_1 | (*Engine).ServeHTTP: engine.handleHTTPRequest(c)
api_1 | /usr/local/go/src/net/http/server.go:2774 (0x6dcc77)
api_1 | serverHandler.ServeHTTP: handler.ServeHTTP(rw, req)
api_1 | /usr/local/go/src/net/http/server.go:1878 (0x6d8860)
api_1 | (*conn).serve: serverHandler{c.server}.ServeHTTP(w, w.req)
api_1 | /usr/local/go/src/runtime/asm_amd64.s:1337 (0x45a090)
api_1 | goexit: BYTE $0x90 // NOP
api_1 |
api_1 | [GIN] 2019/07/31 - 06:29:58 | 500 | 123.5997ms | 172.18.0.1 | GET /api/articles

Answer 1

As alternative solution, I changed server side codes to create table.
_, err = db.Exec("CREATE DATABASE IF NOT EXISTS article;")
if err != nil {
panic(err)
}
_, err = db.Exec("use article;")
if err != nil {
panic(err)
}
_, err = db.Exec("CREATE TABLE IF NOT EXISTS `articles` (`id` int NOT NULL AUTO_INCREMENT PRIMARY KEY,uuid varchar(36), `title` VARCHAR(100) NOT NULL,`content` TEXT NOT NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8;")
if err != nil {
panic(err)
}
_, err = db.Exec("create table IF NOT EXISTS images (id int AUTO_INCREMENT NOT NULL PRIMARY KEY, article_uuid varchar(36), image_name varchar(50)); ")
if err != nil {
panic(err)
}