我需要go语言代码来编写两个静态Dashboard页面，并能够对mysql数据库中的contain表进行增删改查。第一个页面中能够输入user表的用户id，用户名，密码，然后跳转到第二个页面，展示用户id所对应的contain表中所有匹配的contain的contain的id，contain是否在运行，最后一次更新的时间，所需要的镜像id，占用的cpu核数，占用内存大小及暴露的端口号的信息并能够对记录进行增删改查。

好的，以下是一个简单的示例代码，你可以根据实际情况进行修改：

package main

import (
	"database/sql"
	"fmt"
	"html/template"
	"log"
	"net/http"

	_ "github.com/go-sql-driver/mysql"
)

type User struct {
	ID       int
	Username string
	Password string
}

type Contain struct {
	ID          int
	UserID      int
	Running     bool
	LastUpdated string
	ImageID     string
	CPUCores    int
	Memory      int
	Port        int
}

func main() {
	db, err := sql.Open("mysql", "username:password@tcp(localhost:3306)/database_name")
	if err != nil {
		log.Fatal(err)
	}
	defer db.Close()

	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		if r.Method == "POST" {
			// Insert new user
			username := r.FormValue("username")
			password := r.FormValue("password")
			stmt, err := db.Prepare("INSERT INTO user(username, password) VALUES(?, ?)")
			if err != nil {
				log.Fatal(err)
			}
			res, err := stmt.Exec(username, password)
			if err != nil {
				log.Fatal(err)
			}
			lastID, err := res.LastInsertId()
			if err != nil {
				log.Fatal(err)
			}
			http.Redirect(w, r, fmt.Sprintf("/contain?id=%d", lastID), http.StatusSeeOther)
		} else {
			// Display user form
			tmpl := template.Must(template.ParseFiles("user.html"))
			tmpl.Execute(w, nil)
		}
	})

	http.HandleFunc("/contain", func(w http.ResponseWriter, r *http.Request) {
		id := r.URL.Query().Get("id")
		if id == "" {
			http.Error(w, "Missing user ID", http.StatusBadRequest)
			return
		}

		// Get user information
		var user User
		err := db.QueryRow("SELECT * FROM user WHERE id = ?", id).Scan(&user.ID, &user.Username, &user.Password)
		if err != nil {
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}

		if r.Method == "POST" {
			// Insert new contain
			running := r.FormValue("running") == "on"
			lastUpdated := r.FormValue("last_updated")
			imageID := r.FormValue("image_id")
			cpuCores := r.FormValue("cpu_cores")
			memory := r.FormValue("memory")
			port := r.FormValue("port")
			stmt, err := db.Prepare("INSERT INTO contain(user_id, running, last_updated, image_id, cpu_cores, memory, port) VALUES(?, ?, ?, ?, ?, ?, ?)")
			if err != nil {
				log.Fatal(err)
			}
			_, err = stmt.Exec(id, running, lastUpdated, imageID, cpuCores, memory, port)
			if err != nil {
				log.Fatal(err)
			}
		}

		// Get contains information
		rows, err := db.Query("SELECT * FROM contain WHERE user_id = ?", id)
		if err != nil {
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}
		defer rows.Close()

		var contains []Contain
		for rows.Next() {
			var contain Contain
			err := rows.Scan(&contain.ID, &contain.UserID, &contain.Running, &contain.LastUpdated, &contain.ImageID, &contain.CPUCores, &contain.Memory, &contain.Port)
			if err != nil {
				http.Error(w, err.Error(), http.StatusInternalServerError)
				return
			}
			contains = append(contains, contain)
		}
		err = rows.Err()
		if err != nil {
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}

		// Display contain information
		tmpl := template.Must(template.ParseFiles("contain.html"))
		data := struct {
			User     User
			Contains []Contain
		}{
			User:     user,
			Contains: contains,
		}
		tmpl.Execute(w, data)
	})

	log.Fatal(http.ListenAndServe(":8080", nil))
}

其中，`user.html`和`contain.html`是两个HTML模板文件，用于渲染用户表单和包含表信息。你需要根据实际需求来编写这两个模板文件。

另外，为了使代码更安全，你需要根据实际情况来修改数据库连接字符串，以及对数据库操作的语句。