Dev env with Docker (#2)

* use go modules

* do not use dep for travis

* Use github.com/putdotio/pas as module name

* run inside docker containers

* move go-mod files above to prevent download modules for each run

Dockerfile-mysql

@@ -0,0 +1,16 @@
+FROM ubuntu:xenial
+
+ARG DEBIAN_FRONTEND=noninteractive
+RUN apt-get update && apt-get -y install mysql-server-5.7
+
+ARG MYSQL_USER=pas
+ARG MYSQL_PASSWORD=123
+ARG MYSQL_DATABASE=pas
+
+ADD docker-mysql-init.sh /tmp/
+
+RUN ["bash", "/tmp/docker-mysql-init.sh"]
+
+ENTRYPOINT ["mysqld"]
+
+EXPOSE 3306

Dockerfile-pas

@@ -0,0 +1,12 @@
+FROM golang:1.15
+
+WORKDIR /src
+COPY go.* ./
+RUN go mod download
+
+COPY . ./
+RUN go install
+
+ADD config.toml /etc/pas.toml
+
+ENTRYPOINT ["pas", "-config", "/etc/pas.toml"]

config.toml

@@ -0,0 +1,12 @@
+ListenAddress = "0.0.0.0:8080"
+ShutdownTimeout = 5000
+MySQLDSN = "pas:123@(mysql:3306)/pas"
+
+[User]
+name = "string"
+email = "string"
+
+[Events]
+
+[Events.page_viewed]
+path = "string"

docker-compose.yml

@@ -0,0 +1,22 @@
+version: '3.2'
+services:
+  mysql:
+    image: pas-mysql
+    container_name: pas-mysql
+    build:
+      dockerfile: Dockerfile-mysql
+      context: .
+    ports:
+      - "3306:3306"
+  pas:
+    image: pas
+    container_name: pas
+    build:
+      dockerfile: Dockerfile-pas
+      context: .
+    depends_on:
+      - mysql
+    ports:
+      - "8080:8080"
+    tty: true
+    privileged: true

docker-mysql-init.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+set -e
+
+mkdir /var/run/mysqld
+chown mysql /var/run/mysqld
+
+mysqld &
+pid="$!"
+
+for i in {30..0}; do
+        if echo 'SELECT 1' | mysql &> /dev/null; then
+                break
+        fi
+        echo 'MySQL init process in progress...'
+        sleep 1
+done
+if [ "$i" = 0 ]; then
+        echo >&2 'MySQL init process failed.'
+        exit 1
+fi
+
+mysql -e "CREATE DATABASE IF NOT EXISTS \`$MYSQL_DATABASE\` ;"
+
+mysql -e "CREATE USER '$MYSQL_USER'@'%' IDENTIFIED WITH mysql_native_password BY '$MYSQL_PASSWORD' ;"
+mysql -e "GRANT ALL ON \`$MYSQL_DATABASE\`.* TO '$MYSQL_USER'@'%' ;"
+mysql -e 'FLUSH PRIVILEGES ;'
+
+if ! kill -s TERM "$pid" || ! wait "$pid"; then
+        echo >&2 'MySQL init process failed.'
+        exit 1
+fi
+
+# listen all ips
+sed -i 's/^ *bind-address\s*=.*$/bind-address=0.0.0.0/' /etc/mysql/mysql.conf.d/mysqld.cnf
+
+echo MySQL init process done. Ready for start up.

internal/handler/handler.go

@@ -66,6 +66,7 @@ func (s *Handler) handleUsers(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, err.Error(), http.StatusBadRequest)
 		return
 	}
+	// todo: if len(users) == 0 -> return
 	_, err = s.analytics.UpdateUsers(users.Users)
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusInternalServerError)