Add cfssl (#17)

* add cfssl

* Install from docker

Dockerfile

@@ -1,8 +1,16 @@
+# Install CFSSL from official cfssl.org binaries
+ARG CFSSL_VERSION=1.3.2
+FROM cfssl/cfssl:${CFSSL_VERSION} as cfssl
+
+# Install remaining packages
 FROM alpine:3.7
 ENV INSTALL_PATH=/packages/bin
 ENV PATH=${INSTALL_PATH}:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
 RUN mkdir -p ${INSTALL_PATH}
 RUN apk add --update --no-cache make curl coreutils libc6-compat
+
+COPY --from=cfssl /go/bin/ ${INSTALL_PATH}/
+
 ADD . /packages
 RUN make -C /packages/install/ all
 WORKDIR /opt

install/Makefile

@@ -10,6 +10,7 @@ github_download_binary_release = $(CURL) -o $(INSTALL_PATH)/$@ https://github.co
 
 all: awless \
 	 aws-vault \
+	 cfssl \
 	 chamber \
 	 fetch \
 	 github-commenter \
@@ -18,6 +19,7 @@ all: awless \
 	 helm \
 	 helmfile \
 	 htmltest \
+	 hugo \
 	 kops \
 	 kubectl \
 	 kubectx \
@@ -43,6 +45,11 @@ export AWS_VAULT_VERSION ?= 4.2.0
 aws-vault:
 	$(call github_download_binary_release,99designs,v$(AWS_VAULT_VERSION),$@-$(OS)-$(ARCH))
 
+export CFSSL_VERSION ?= 1.3.2
+## Install cfssl - Cloudflare's PKI and TLS toolkit 
+cfssl:
+	@echo "The '$@' package is only availble in cloudposse/packages docker image"
+
 export CHAMBER_VERSION ?= 2.0.0
 ## Install Chamber to manage secrets with SSM+KMS
 chamber: