initial commit

Dockerfile

@@ -0,0 +1,8 @@
+FROM alpine:3.4
+
+RUN apk upgrade --no-cache
+RUN apk add --no-cache nginx bash
+
+ADD bin/run.sh /run.sh
+
+ENTRYPOINT ["/run.sh"]

README.md

@@ -1,2 +1,58 @@
 # docker-nginx
 Minimal bare nginx docker image
+
+
+### Configuration
+There are two ways to pass nginx configuration.
+
+#### Config block via env variable
+Read in a config block preserving new lines, etc.
+
+```
+read -r -d '' NGINX_CONFIG <<'EOF'
+user nginx;
+worker_processes auto;
+error_log /dev/stderr error;
+
+events {
+    worker_connections 1024;
+}
+
+http {
+    sendfile            on;
+    tcp_nopush          on;
+    tcp_nodelay         on;
+    keepalive_timeout   65;
+    types_hash_max_size 2048;
+
+    include             /etc/nginx/mime.types;
+    default_type        application/octet-stream;
+
+    server {
+        listen       80 default_server;
+        server_name  _;
+
+        location / {
+            return 200 "Everything is OK.\n";
+        }
+    }
+}
+EOF
+```
+
+```
+export NGINX_CONFIG
+docker run -ti --rm -e NGINX_CONFIG quay.io/ukhomeofficedigital/nginx:v0.0.1 
+```
+
+#### Config file via env variable
+You can provide a config file inside a container instead.
+
+```
+docker run -ti --rm -e NGINX_CONFIG_FILE=/config/nginx.conf quay.io/ukhomeofficedigital/nginx:v0.0.1 
+```
+
+
+### Extra Configs
+
+TODO

bin/run.sh

@@ -0,0 +1,16 @@
+#!/bin/bash -
+
+set -o errexit
+
+mkdir -p /run/nginx
+
+# config file takes precedence
+if [[ -f ${NGINX_CONFIG_FILE} ]]; then
+  nginx -g 'daemon off;' -c ${NGINX_CONFIG_FILE}
+elif [[ -n ${NGINX_CONFIG} ]]; then
+  cp <(echo "${NGINX_CONFIG}") /etc/nginx/nginx.conf
+  nginx -g 'daemon off;' -c /etc/nginx/nginx.conf
+else
+  echo "[error] please set NGINX_CONFIG_FILE or NGINX_CONFIG variable."
+  exit 1
+fi