feat(alpine) build and package Kong for docker alpine (#6)

* feat(RHEL) add the ability to build RHEL rpm packages

* feat(rhel) setup rhel package naming

* feat(rhel) setup release scripts for RHEL

* misc(docs) Update the readme to detail RHEL and releasing to bintray

* feat(centos) ability to release centos to bintray

* feat(alpine) alpine openssl needs no-async

* feat(alpine) setup packaging the alpine tar.gz

Dockerfile.alpine

@@ -0,0 +1,13 @@
+ARG RESTY_IMAGE_BASE
+ARG RESTY_IMAGE_TAG
+
+FROM alpine
+
+RUN apk update \
+  && apk add ca-certificates wget \
+  && update-ca-certificates \
+  && apk add --virtual build-deps make gcc make g++ zlib-dev musl-dev pcre-dev \
+    openssl-dev zlib-dev ncurses-dev readline-dev curl perl \
+    libffi-dev git unzip tar openssh m4 xz gnupg openssl musl \
+    linux-headers bsd-compat-headers bash
+

Dockerfile.openresty

@@ -3,6 +3,7 @@ ARG RESTY_IMAGE_TAG="xenial"
 
 FROM kong:${RESTY_IMAGE_BASE}-${RESTY_IMAGE_TAG}
 
+ARG OPENSSL_EXTRA_OPTIONS
 ARG RESTY_VERSION="1.13.6.2"
 ARG RESTY_LUAROCKS_VERSION="2.4.3"
 ARG RESTY_OPENSSL_VERSION="1.1.1"
@@ -46,10 +47,8 @@ RUN cd /tmp \
     && for i in /tmp/openresty-patches-master/patches/${RESTY_VERSION}/*.patch; do patch -p1 < $i; done
 
 RUN cd /tmp/openssl-${RESTY_OPENSSL_VERSION} \
-    && eval ./config \
-      --prefix=/tmp/build/usr/local/kong \
-      --openssldir=/tmp/build/usr/local/kong \
-      shared \
+    && export OPENSSL_OPTIONS="--prefix=/tmp/build/usr/local/kong --openssldir=/tmp/build/usr/local/kong $OPENSSL_EXTRA_OPTIONS" \
+    && eval ./config $OPENSSL_OPTIONS shared \
     && make -j${RESTY_J}
 
 RUN cd /tmp/openresty-${RESTY_VERSION} \

Makefile

@@ -8,6 +8,10 @@ RESTY_LUAROCKS_VERSION?="2.4.3"
 RESTY_OPENSSL_VERSION?="1.1.1"
 RESTY_PCRE_VERSION?="8.41"
 
+ifeq ($(RESTY_IMAGE_BASE),alpine)
+	OPENSSL_EXTRA_OPTIONS=" -no-async"
+endif
+
 KONG_PACKAGE_NAME?="kong-community-edition"
 KONG_CONFLICTS?="kong-enterprise-edition"
 KONG_LICENSE?="ASL 2.0"
@@ -42,7 +46,6 @@ package-kong: build-kong
 	-e RESTY_IMAGE_TAG=$(RESTY_IMAGE_TAG) \
 	-e RESTY_IMAGE_BASE=$(RESTY_IMAGE_BASE) \
 	kong:fpm
-
 
 build-kong: build-openresty-base
 	docker build -f Dockerfile.kong \
@@ -68,23 +71,22 @@ build-openresty-base: build-base
 	--build-arg RESTY_PCRE_VERSION=$(RESTY_PCRE_VERSION) \
 	--build-arg RESTY_IMAGE_TAG="$(RESTY_IMAGE_TAG)" \
 	--build-arg RESTY_IMAGE_BASE=$(RESTY_IMAGE_BASE) \
+	--build-arg OPENSSL_EXTRA_OPTIONS=$(OPENSSL_EXTRA_OPTIONS) \
 	-t kong:openresty-$(RESTY_IMAGE_BASE)-$(RESTY_IMAGE_TAG) .
 
+
 build-base:
 ifeq ($(RESTY_IMAGE_BASE),rhel)
-	make build-rhel-base
-else
-	docker build -f Dockerfile.$(RESTY_IMAGE_BASE) \
-	--build-arg RESTY_IMAGE_TAG="$(RESTY_IMAGE_TAG)" \
-	--build-arg RESTY_IMAGE_BASE=$(RESTY_IMAGE_BASE) \
-	-t kong:$(RESTY_IMAGE_BASE)-$(RESTY_IMAGE_TAG) .
-endif
-
-build-rhel-base:
 	@docker build -f Dockerfile.rhel \
 	--build-arg RESTY_IMAGE_BASE=registry.access.redhat.com/rhel${RESTY_IMAGE_TAG} \
 	--build-arg RESTY_IMAGE_TAG=latest \
 	--build-arg RHEL=true \
 	--build-arg REDHAT_USERNAME=$(REDHAT_USERNAME) \
 	--build-arg REDHAT_PASSWORD=$(REDHAT_PASSWORD) \
 	-t kong:$(RESTY_IMAGE_BASE)-$(RESTY_IMAGE_TAG) .
+else
+	docker build -f Dockerfile.$(RESTY_IMAGE_BASE) \
+	--build-arg RESTY_IMAGE_TAG="$(RESTY_IMAGE_TAG)" \
+	--build-arg RESTY_IMAGE_BASE=$(RESTY_IMAGE_BASE) \
+	-t kong:$(RESTY_IMAGE_BASE)-$(RESTY_IMAGE_TAG) .
+endif

README.md

@@ -32,8 +32,8 @@ The most common ones are the following:
 KONG_SOURCE_LOCATION=/src/projects/custom-kong-location
 KONG_PACKAGE_NAME=custom-kong-name
 KONG_VERSION=v1.0.0
-RESTY_IMAGE_BASE=ubuntu|centos|rhel
-RESTY_IMAGE_TAG=trusty|xenial|6|7
+RESTY_IMAGE_BASE=ubuntu|centos|rhel|alpine
+RESTY_IMAGE_TAG=trusty|xenial|6|7|latest
 ```
 
 For RedHat additionally export:

entrypoint.sh

@@ -16,10 +16,16 @@ pushd /tmp/openssl
 popd
 
 pushd /kong
-  /tmp/build/usr/local/bin/luarocks make kong-*.rockspec \
+  ROCKSPEC_VERSION=`basename $TMP/kong/kong-*.rockspec` \
+    && ROCKSPEC_VERSION=${ROCKSPEC_VERSION%.*} \
+    && ROCKSPEC_VERSION=${ROCKSPEC_VERSION#"kong-"}
+
+  /tmp/build/usr/local/bin/luarocks make kong-${ROCKSPEC_VERSION}.rockspec \
     OPENSSL_INCDIR=/tmp/openssl/include \
     CRYPTO_INCDIR=/tmp/openssl/include \
     CRYPTO_LIBDIR=/tmp/openssl
+
+  cp kong.conf.default /tmp/build/usr/local/lib/luarocks/rocks/kong/$ROCKSPEC_VERSION/kong.conf.default
 popd
 
 cp /kong/bin/kong /tmp/build/usr/local/bin/kong

fpm-entrypoint.sh

@@ -20,7 +20,14 @@ elif [ "$RESTY_IMAGE_BASE" == "rhel" ]; then
   fi
 fi
 
-fpm -a all -f -s dir \
+if [ "$RESTY_IMAGE_BASE" == "alpine" ]; then
+  pushd /tmp/build
+    mkdir -p etc/kong
+    mv usr/local/lib/luarocks/rocks/kong/*/kong.conf.default etc/kong
+    tar -zcvf /output/${KONG_PACKAGE_NAME}-${KONG_VERSION}${OUTPUT_FILE_SUFFIX}.apk.tar.gz usr etc
+  popd
+else
+  fpm -a all -f -s dir \
     -t $PACKAGE_TYPE \
     -m '[email protected]' \
     -n $KONG_PACKAGE_NAME \
@@ -31,6 +38,7 @@ fpm -a all -f -s dir \
     --vendor 'Kong Inc.' \
     --license "$KONG_LICENSE" \
     --url 'https://getkong.org/' usr \
-  && mv kong*.* /output/${KONG_PACKAGE_NAME}-${KONG_VERSION}${OUTPUT_FILE_SUFFIX}.${PACKAGE_TYPE} \
-  && rm -rf /tmp/build/*
-
+  && mv kong*.* /output/${KONG_PACKAGE_NAME}-${KONG_VERSION}${OUTPUT_FILE_SUFFIX}.${PACKAGE_TYPE}
+fi
+
+rm -rf /tmp/build/*