diff --git a/README.md b/README.md
index 076bdb1..f7a4faf 100644
--- a/README.md
+++ b/README.md
@@ -109,6 +109,7 @@ dockerfiles
 
 - [x] centurylink/watchtower
 - [x] drone/drone
+- [x] drupal
 - [x] ghost
 - [x] gitlab/gitlab-ce
 - [ ] gliderlabs/logspout
diff --git a/drupal/README.md b/drupal/README.md
new file mode 100644
index 0000000..07854d5
--- /dev/null
+++ b/drupal/README.md
@@ -0,0 +1,33 @@
+drupal
+======
+
+```
+drupal:
+  image: drupal
+  ports:
+    - "8888:80"
+  links:
+    - mysql
+  restart: always
+
+mysql:
+  image: mysql
+  ports:
+    - "127.0.0.1:3306:3306"
+  environment:
+    - MYSQL_ROOT_PASSWORD=root
+    - MYSQL_DATABASE=drupal
+  restart: always
+```
+
+```
+cd ~/fig/drupal/
+docker-compose up -d mysql
+sleep 30
+docker-compose up -d drupal
+
+docker cp drupal_mysql_1:/usr/bin/mysql /usr/local/bin/
+mysql -h127.0.0.1 -P3306 -uroot -proot drupal
+
+firefox http://127.0.0.1:8888
+```
diff --git a/drupal/docker-compose.yml b/drupal/docker-compose.yml
new file mode 100644
index 0000000..4b3dc60
--- /dev/null
+++ b/drupal/docker-compose.yml
@@ -0,0 +1,7 @@
+drupal:
+  image: drupal
+  ports:
+    - "8888:80"
+  volumes:
+    - /var/www/html/sites
+  restart: always
diff --git a/h2o/Dockerfile b/h2o/Dockerfile
index 0e60a5a..1f7f787 100644
--- a/h2o/Dockerfile
+++ b/h2o/Dockerfile
@@ -9,11 +9,12 @@ ENV H2O_VER 1.7.0
 ENV H2O_URL https://github.com/h2o/h2o/archive/v${H2O_VER}.tar.gz
 ENV H2O_DIR h2o-${H2O_VER}
 
-RUN apk add -U build-base \
-               cmake \
-               curl \
-               linux-headers \
-               zlib-dev \
+RUN set -xe \
+    && apk add -U build-base \
+                  cmake \
+                  curl \
+                  linux-headers \
+                  zlib-dev \
     && curl -sSL ${H2O_URL} | tar xz \
         && cd ${H2O_DIR} \
         && cmake -DWITH_BUNDLED_SSL=on . \
@@ -28,9 +29,7 @@ RUN apk add -U build-base \
     && rm -rf /var/cache/apk/*
 
 COPY h2o.conf /etc/
-
 WORKDIR /var/www/html
 
-EXPOSE 80 443
-
+EXPOSE 80
 CMD ["h2o", "-c", "/etc/h2o.conf"]
diff --git a/h2o/arm/Dockerfile b/h2o/arm/Dockerfile
index f64e653..eaa4e16 100644
--- a/h2o/arm/Dockerfile
+++ b/h2o/arm/Dockerfile
@@ -9,11 +9,12 @@ ENV H2O_VER 1.7.0
 ENV H2O_URL https://github.com/h2o/h2o/archive/v${H2O_VER}.tar.gz
 ENV H2O_DIR h2o-${H2O_VER}
 
-RUN apk add -U build-base \
-               cmake \
-               curl \
-               linux-headers \
-               zlib-dev \
+RUN set -xe \
+    && apk add -U build-base \
+                  cmake \
+                  curl \
+                  linux-headers \
+                  zlib-dev \
     && curl -sSL ${H2O_URL} | tar xz \
         && cd ${H2O_DIR} \
         && cmake -DWITH_BUNDLED_SSL=on . \
@@ -28,9 +29,7 @@ RUN apk add -U build-base \
     && rm -rf /var/cache/apk/*
 
 COPY h2o.conf /etc/
-
 WORKDIR /var/www/html
 
-EXPOSE 80 443
-
+EXPOSE 80
 CMD ["h2o", "-c", "/etc/h2o.conf"]
diff --git a/rtmp/README.md b/rtmp/README.md
index f69cc23..c5c5e17 100644
--- a/rtmp/README.md
+++ b/rtmp/README.md
@@ -38,6 +38,7 @@ server:
 
 client:
   image: vimagick/rtmp-client-arm
+# command: ffmpeg -i /dev/video0 -vf "hflip,vflip" -f flv rtmp://cctv.datageek.info/live/webcam
   devices:
     - /dev/video0:/dev/video0
   environment:
@@ -45,6 +46,8 @@ client:
   restart: always
 ```
 
+> You can run customized `ffmpeg` command.
+
 ## Server
 
 ```