fix(README): adapt the README file to the current flucky source code

Makefile

@@ -10,8 +10,13 @@ GID?=$(shell id --group)
 # value is taken.
 VERSION:=$(or ${TRAVIS_TAG}, $(shell git rev-parse --short HEAD)-git)
 
+# CONTAINER_RUNTIME
 CONTAINER_RUNTIME?=$(shell which docker)
 
+# BUILD_IMAGE
+BUILD_IMAGE:=volkerraschek/build-image:latest
+
+# GO ENVIRONMENT
 GOARCH?=amd64
 GOOS?=linux
 
@@ -20,11 +25,20 @@ go-build: bindata
 	GOOS=${GOOS} \
 	GOARCH=${GOARCH} \
 		go build -ldflags "-X main.version=${VERSION}"
-	chown -R ${UID}:${GID} *
+	chown ${UID}:${GID} ./*
 
 go-test: go-build
 	go test -v ./pkg/...
 
+rpm-build: go-build
+	rpm-builder \
+		--arch x86_64 \
+		--compression gzip \
+		--exec-file "flucky:/usr/bin/flucky" \
+		--file "systemd/flucky.service:/usr/lib/systemd/system/flucky.service" \
+		--version ${VERSION} \
+		flucky-${VERSION}
+
 bindata:
 	go-bindata -pkg db -o ./pkg/db/bindataSQL.go ./pkg/db/sql/***
 	go-bindata -pkg goldenfiles -o ./test/goldenfiles/bindata.go ./test/goldenfiles/json/***
@@ -35,12 +49,20 @@ container-go-build:
 container-go-test:
 	$(MAKE) container-run COMMAND=go-test
 
+container-rpm-build:
+	$(MAKE) container-run COMMAND=rpm-build
+
 container-run:
 	${CONTAINER_RUNTIME} run \
-		--volume ${PWD}:/workspace \
 		--rm \
-		volkerraschek/build-image:latest\
-			make ${COMMAND} UID=${UID} GID=${GID} VERSION=${VERSION} GOOS=${GOOS} GOARCH=${GOARCH}
+		--volume ${PWD}:/workspace \
+		${BUILD_IMAGE} \
+			make ${COMMAND} \
+				UID=${UID} \
+				GID=${GID} \
+				VERSION=${VERSION} \
+				GOOS=${GOOS} \
+				GOARCH=${GOARCH}
 
 remote:
 	$(MAKE) go-build GOARCH=arm

README.md

@@ -1,23 +1,88 @@
 # flucky [![Build Status](https://travis-ci.com/go-flucky/flucky.svg?branch=master)](https://travis-ci.com/go-flucky/flucky)
-Flucky is a lightweight program written in go for reading data from sensors with a raspberry pi.
 
-## Compiling
-Flucky can be compiled directly with go.
+Flucky is a lightweight program written in go for reading data from sensors, for
+example with a banana or raspberry pi. In addition, flucky provides a REST-API
+to receive from other flucky installations measured values. The measured values
+can be saved in a logfile or into a database. Currently is only postgres
+supported.
+
+## Installation
+
+Flucky can be installed over multiple ways, for example with your local package
+manager from your linux distribution. At the moment it's only the rpm package
+format supported. Alternatively the source code can be compiled to get the
+flucky binary.
+
+### RPM-Package
+
+To install flucky over a RPM package you can download a specific version from
+github.com or configure the RPM-Mirror.
+
+#### RPM-Mirror
 
 ```bash
-$ go get -u github.com/go-flucky/flucky
+$ cat > /etc/yum.repos.d/flucky.rpm <<EOF
+[flucky]
+name=flucky
+baseurl=http://rpm-mirror.cryptic.systems
+gpgcheck=0
+EOF
+$ yum update && yum install --assumeyes flucky
 ```
 
-Alternatively you can checkout this repository and compile it with make for your architecture. For examample for a raspberry pi with arm architecture.
+#### Download github.com
 
 ```bash
-$ make build
-$ make build GOARCH=arm # for raspberry-pi
+$ VERSION=v0.1.0 \
+  curl --location https://github.com/volker-raschek/flucky/releases/${VERSION}/flucky.rpm -O flucky-${VERSION}.rpm
+$ yum install --assumeyes ./flucky-${VERSION}.rpm
 ```
 
-If you have installed docker oder podman but not go, you can compile the source code via one of the container runtimes.
+### Compiling the source code
+
+An additional ways to install flucky is to compile the source code. There are
+two different ways to compile flucky from scratch. The easier ways is
+to use the pre-defined container image in the Makefile, which has included all
+dependancies to compile flucky. Alternatively, if all dependencies are met,
+flucky can also be compiled without the container image. Both variants are
+briefly described.
+
+#### Compiling the source code via container image
+
+To compile flucky via container image it's necessary, that a container runtime
+is installed. In the Makefile is predefined docker, but it's can be also used
+podman. Execute `make container-go-build` to start the compiling process.
 
 ```bash
-$ make container-build
-$ make container-build GOARCH=arm  # for raspberry-pi
-```
+$ make container-go-build
+make container-run COMMAND=go-build
+make[1]: Directory „/home/markus/workspace/flucky“ is entered
+/usr/bin/docker run \
+        --rm \
+        --volume /home/markus/workspace/flucky:/workspace \
+        volkerraschek/build-image:latest \
+                make go-build \
+                        UID=1000 \
+                        GID=1000 \
+                        VERSION=60ee044-git \
+                        GOOS=linux \
+                        GOARCH=amd64
+go-bindata -pkg db -o ./pkg/db/bindataSQL.go ./pkg/db/sql/***
+go-bindata -pkg goldenfiles -o ./test/goldenfiles/bindata.go ./test/goldenfiles/json/***
+GOOS=linux \
+GOARCH=amd64 \
+        go build -ldflags "-X main.version=60ee044-git"
+go: finding github.com/spf13/pflag v1.0.3
+go: finding github.com/satori/go.uuid v1.2.0
+...
+```
+
+#### Compiling the source code without container image
+
+Make sure you have installed go >= v1.12. Execute `make go-build` to compile
+flucky without a container-image. There should be a similar output as when
+compiling flucky via the container image.
+
+## Enhancements
+
++ Provide flucky additionally as AUR and deb package