[fix] Fixed image building config.

[add] Drone CI build and publish processes.

.drone.yml

@@ -0,0 +1,46 @@
+---
+kind: pipeline
+type: docker
+name: Build
+
+steps:
+- name: build
+  image: plugins/docker
+  repo: docker.pbiernat.dev/nginx-php
+  username:
+    from_secret: docker_username
+  password:
+    from_secret: docker_password
+  commands:
+  - sleep 5
+  - docker build -t docker.pbiernat.dev/nginx-php .
+  - docker images | grep nginx-php
+  volumes:
+  - name: docker-sock
+    path: /var/run
+
+- name: publish
+  image: plugins/docker
+  repo: docker.pbiernat.dev/nginx-php
+  username:
+    from_secret: docker_username
+  password:
+    from_secret: docker_password
+  when:
+    branch: master
+  volumes:
+  - name: docker-sock
+    path: /var/run
+
+services:
+- name: docker
+  image: docker:dind
+  privileged: true
+  volumes:
+  - name: docker-sock
+    path: /var/run
+
+volumes:
+- name: docker-sock
+  temp: {}
+

Dockerfile

@@ -1,7 +1,7 @@
 FROM alpine:latest
 
-RUN apk add --update --no-cache coreutils supervisor acl nginx make curl bash \
-   && mkdir /run/nginx && mkdir /var/www/app && mkdir /run/php
+RUN apk add --update --no-cache coreutils supervisor acl nginx make curl bash icu-libs \
+   && mkdir -p /run/nginx && mkdir /var/www/app && mkdir /run/php
 
 RUN apk add --no-cache --repository http://dl-cdn.alpinelinux.org/alpine/edge/community \
    php7 php7-fpm php7-opcache php7-mysqli php7-json php7-openssl php7-curl php7-zlib composer \