mirror of https://github.com/lnbook/lnbook
Docker example fixes, upgrades and ch4 text edits
The docker containers have been improved and updated. The payment demo script can be rerun and is resilient to errors and delays. The docker mini-tutotial and installation instructions have been moved to a new appendixpull/793/head
Andreas M. Antonopoulos
3 years ago
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@ -0,0 +1,113 @@
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[appendix]
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[[appendix_docker]]
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== Docker Basic Installation and Use
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This book contains a number of examples that run inside docker containers, for standardization across different operating systems.
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This section will help you install Docker and familiarize yourself with some of the most commonly used Docker commands, so that you can run the book's example containers.
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=== Installing Docker
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Before we begin, you should install the Docker container system on your computer. Docker is an open system that is distributed for free as a _Community Edition_ for many different operating systems including Windows, Mac OS and Linux. The Windows and Mac versions are called _Docker Desktop_ and consist of a GUI desktop application and command-line tools. The Linux version is called _Docker Engine_ and is comprised of a server daemon and command-line tools. We will be using the command-line tools, which are identical across all platforms.
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Go ahead and install Docker for your operating system by following the instructions to _"Get Docker"_ from the Docker website found here:
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https://docs.docker.com/get-docker/
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Select your operating system from the list and follow the installation instructions.
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[TIP]
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====
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If you install on Linux, follow the post-installation instructions to ensure you can run Docker as a regular user instead of user _root_. Otherwise, you will need to prefix all +docker+ commands with +sudo+, running them as root like: +sudo docker+.
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====
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Once you have Docker installed, you can test your installation by running the demo container +hello-world+ like this:
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[docker-hello-world]
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----
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$ docker run hello-world
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Hello from Docker!
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This message shows that your installation appears to be working correctly.
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[...]
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----
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=== Basic Docker commands
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In this chapter, we use Docker quite extensively. We will be using the following Docker commands and arguments:
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*Building a container*
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----
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docker build [-t tag] [directory]
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----
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...where +tag+ is how we identify the container we are building, and +directory+ is where the container's "context" (folders and files) and definition file (+Dockerfile+) are found.
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*Running a container*
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----
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docker run -it [--network netname] [--name cname] tag
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----
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...where +netname+ is the name of a Docker network, +cname+ is the name we choose for this container instance and +tag+ is the name tag we gave the container when we built it.
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*Executing a command in a container*
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----
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docker exec cname command
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----
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...where +cname+ is the name we gave the container in the +run+ command, and +command+ is an executable or script that we want to run inside the container.
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*Stopping and starting a container*
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In most cases, if we are running a container in an _interactive_ as well as _terminal_ mode, i.e. with the +i+ and +t+ flags (combined as +-it+) set, the container can be stopped by simply pressing +CTRL-C+ or by exiting the shell with +exit+ or +CTRL-D+. If a container does not terminate, you can stop it from another terminal like this:
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----
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docker stop cname
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----
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To resume an already existing container use the `start` command, like so:
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----
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docker start cname
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----
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*Deleting a container by name*
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If you name a container instead of letting Docker name it randomly, you cannot reuse that name until the container is deleted. Docker will return an error like this:
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[source,bash]
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----
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docker: Error response from daemon: Conflict. The container name "/bitcoind" is already in use...
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----
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To fix this, delete the existing instance of the container:
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----
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docker rm cname
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----
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...where +cname+ is the name assigned to the container (+bitcoind+ in the example error message)
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*List running containers*
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----
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docker ps
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----
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...shows the current running containers and their names
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*List docker images*
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----
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docker image ls
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----
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...shows the docker images that have been built or downloaded on your computer
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=== Conclusion
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These basic Docker commands will be enough to get you started and will allow you to run all the examples in this book.
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@ -1,16 +1,126 @@
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#!make
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#
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# Makefile to help with building, pulling and pushing containers
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#
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# NOTE: You cannot push to the container registry unless you are authorized
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# in the lnbook organization (i.e. one of the authors or maintainers)
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#
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# Targets:
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#
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# make build # Build all containers
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# make pull # Pull all containers from the registry
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# make build-bitcoind # Build a specific container
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# make clean # remove all images and containers
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# make push # push updated images to Docker Hub (authors/maintainers only)
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# Latest tested versions of Bitcoin and Lightning clients
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# OS base image
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OS=ubuntu
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OS_VER=focal
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# bitcoind version
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BITCOIND_VER=0.21.0
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# LND version
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GO_VER=1.13
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LND_VER=v0.13.1-beta
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# c-lightning version
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CL_VER=0.10.1
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# Eclair version
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ECLAIR_VER=0.4.2
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ECLAIR_COMMIT=52444b0
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# Docker registry for lnbook
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REGISTRY=docker.com
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NAME=lnbook
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ORG=lnbook
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# List of containers
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CONTAINERS=bitcoind lnd eclair c-lightning
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all: build-all push-all
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.DEFAULT: pull
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build-all:
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for container in ${CONTAINERS}; do \
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docker build -t ${NAME}/$$container $$container -f $$container/Dockerfile; \
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done
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push-all:
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build-bitcoind:
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docker build \
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--build-arg OS=${OS} \
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--build-arg OS_VER=${OS_VER} \
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--build-arg BITCOIND_VER=${BITCOIND_VER} \
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-t ${ORG}/bitcoind:${BITCOIND_VER} \
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bitcoind -f bitcoind/Dockerfile
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docker image tag ${ORG}/bitcoind:${BITCOIND_VER} ${ORG}/bitcoind:latest
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build-cl: build-bitcoind
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docker build \
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--build-arg OS=${OS} \
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--build-arg OS_VER=${OS_VER} \
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--build-arg CL_VER=${CL_VER} \
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-t ${ORG}/c-lightning:${CL_VER} \
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c-lightning -f c-lightning/Dockerfile
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docker image tag ${ORG}/c-lightning:${CL_VER} ${ORG}/c-lightning:latest
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build-lnd:
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docker build \
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--build-arg OS=${OS} \
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--build-arg OS_VER=${OS_VER} \
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--build-arg LND_VER=${LND_VER} \
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--build-arg GO_VER=${GO_VER} \
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-t ${ORG}/lnd:${LND_VER}_golang_${GO_VER} \
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lnd -f lnd/Dockerfile
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docker image tag ${ORG}/lnd:${LND_VER}_golang_${GO_VER} ${ORG}/lnd:latest
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build-eclair:
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docker build \
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--build-arg OS=${OS} \
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--build-arg OS_VER=${OS_VER} \
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--build-arg ECLAIR_VER=${ECLAIR_VER} \
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--build-arg ECLAIR_COMMIT=${ECLAIR_COMMIT} \
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-t ${ORG}/eclair:${ECLAIR_VER}-${ECLAIR_COMMIT} \
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eclair -f eclair/Dockerfile
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docker image tag ${ORG}/eclair:${ECLAIR_VER}-${ECLAIR_COMMIT} ${ORG}/eclair:latest
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push-bitcoind: build-bitcoind
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docker push ${ORG}/bitcoind:${BITCOIND_VER}
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docker push ${ORG}/bitcoind:latest
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push-lnd: build-lnd
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docker push ${ORG}/lnd:${LND_VER}_golang_${GO_VER}
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docker push ${ORG}/lnd:latest
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push-cl: build-cl
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docker push ${ORG}/c-lightning:${CL_VER}
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docker push ${ORG}/c-lightning:latest
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push-eclair: build-eclair
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docker push ${ORG}/eclair:${ECLAIR_VER}-${ECLAIR_COMMIT}
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docker push ${ORG}/eclair:latest
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build: build-bitcoind build-lnd build-cl build-eclair
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push: push-bitcoind push-lnd push-cl push-eclair
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pull:
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for container in ${CONTAINERS}; do \
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docker push ${NAME}/$$container; \
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docker pull ${ORG}/$$container:latest ;\
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done
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clean:
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# Try 'make clean-confirm' if you are sure you want to do this.
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# CAUTION: ALL docker containers and images on your computer will be removed.
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clean-confirm:
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docker rm -f `docker ps -qa`
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docker rmi -f `docker image ls -qa`
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@ -1,25 +1,36 @@
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#!/bin/bash
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set -Eeuo pipefail
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echo Starting bitcoind...
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# Start bitcoind
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echo "Starting bitcoind..."
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bitcoind -datadir=/bitcoind -daemon
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# Wait for bitcoind startup
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echo -n "Waiting for bitcoind to start"
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until bitcoin-cli -datadir=/bitcoind -rpcwait getblockchaininfo > /dev/null 2>&1
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do
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echo -n "."
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sleep 1
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done
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echo bitcoind started
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echo
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echo "bitcoind started"
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# Load private key into wallet
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export address=`cat /bitcoind/keys/demo_address.txt`
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export privkey=`cat /bitcoind/keys/demo_privkey.txt`
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# If restarting the wallet already exists, so don't fail if it does,
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# just load the existing wallet:
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bitcoin-cli -datadir=/bitcoind createwallet regtest > /dev/null || bitcoin-cli -datadir=/bitcoind loadwallet regtest > /dev/null
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bitcoin-cli -datadir=/bitcoind importprivkey $privkey > /dev/null || true
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echo "================================================"
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echo "Importing demo private key"
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echo "Imported demo private key"
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echo "Bitcoin address: " ${address}
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echo "Private key: " ${privkey}
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echo "================================================"
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# If restarting the wallet already exists, so don't fail if it does,
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# just load the existing wallet:
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bitcoin-cli -datadir=/bitcoind createwallet regtest || bitcoin-cli -datadir=/bitcoind loadwallet regtest
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bitcoin-cli -datadir=/bitcoind importprivkey $privkey || true
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# Executing CMD
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echo "$@"
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exec "$@"
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@ -0,0 +1,5 @@
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#!/bin/bash
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#
|
||||
# Helper script used as an alias for bitcoin-cli with the necessary arguments
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||||
#
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/usr/bin/bitcoin-cli -datadir=/bitcoind -regtest $@
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@ -0,0 +1,5 @@
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#!/bin/bash
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||||
#
|
||||
# Helper script used as an alias for lightning-cli with the necessary arguments
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||||
#
|
||||
/usr/bin/lightning-cli --lightning-dir=/lightningd $@
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@ -1,8 +1,7 @@
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#!/bin/bash
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|
||||
# a small script to help sanity check the versions of the different node implementations
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dockerfiles=$(find . -name 'Dockerfile')
|
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# print location of dockerfiles
|
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echo $dockerfiles
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# print variables
|
||||
awk '/ENV/ && /VER|COMMIT/' $dockerfiles
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||||
awk '/ARG/ && /VER|COMMIT/' $dockerfiles
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||||
|
||||
@ -0,0 +1,5 @@
|
||||
#!/bin/bash
|
||||
#
|
||||
# Helper script used as an alias for eclair-cli with the necessary arguments
|
||||
#
|
||||
/usr/local/bin/eclair-cli -s -j -p eclair $@
|
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@ -0,0 +1,5 @@
|
||||
#!/bin/bash
|
||||
#
|
||||
# Helper script used as an alias for lncli with the necessary arguments
|
||||
#
|
||||
/go/bin/lncli --lnddir=/lnd -n regtest $@
|
||||
@ -0,0 +1,177 @@
|
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#!/bin/bash
|
||||
|
||||
#
|
||||
# Helper functions
|
||||
#
|
||||
|
||||
|
||||
# run-in-node: Run a command inside a docker container, using the bash shell
|
||||
function run-in-node () {
|
||||
docker exec "$1" /bin/bash -c "${@:2}"
|
||||
}
|
||||
|
||||
# wait-for-cmd: Run a command repeatedly until it completes/exits successfuly
|
||||
function wait-for-cmd () {
|
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until "${@}" > /dev/null 2>&1
|
||||
do
|
||||
echo -n "."
|
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sleep 1
|
||||
done
|
||||
echo
|
||||
}
|
||||
|
||||
# wait-for-node: Run a command repeatedly until it completes successfully, inside a container
|
||||
# Combining wait-for-cmd and run-in-node
|
||||
function wait-for-node () {
|
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wait-for-cmd run-in-node $1 "${@:2}"
|
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}
|
||||
|
||||
|
||||
# Start the demo
|
||||
echo "Starting Payment Demo"
|
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|
||||
echo "======================================================"
|
||||
echo
|
||||
echo "Waiting for nodes to startup"
|
||||
echo -n "- Waiting for bitcoind startup..."
|
||||
wait-for-node bitcoind "cli getblockchaininfo | jq -e \".blocks > 101\""
|
||||
echo -n "- Waiting for bitcoind mining..."
|
||||
wait-for-node bitcoind "cli getbalance | jq -e \". > 50\""
|
||||
echo -n "- Waiting for Alice startup..."
|
||||
wait-for-node Alice "cli getinfo"
|
||||
echo -n "- Waiting for Bob startup..."
|
||||
wait-for-node Bob "cli getinfo"
|
||||
echo -n "- Waiting for Chan startup..."
|
||||
wait-for-node Chan "cli getinfo"
|
||||
echo -n "- Waiting for Dina startup..."
|
||||
wait-for-node Dina "cli getinfo"
|
||||
echo "All nodes have started"
|
||||
|
||||
echo "======================================================"
|
||||
echo
|
||||
echo "Getting node IDs"
|
||||
alice_address=$(run-in-node Alice "cli getinfo | jq -r .identity_pubkey")
|
||||
bob_address=$(run-in-node Bob "cli getinfo | jq -r .id")
|
||||
chan_address=$(run-in-node Chan "cli getinfo| jq -r .nodeId")
|
||||
dina_address=$(run-in-node Dina "cli getinfo | jq -r .identity_pubkey")
|
||||
|
||||
# Show node IDs
|
||||
echo "- Alice: ${alice_address}"
|
||||
echo "- Bob: ${bob_address}"
|
||||
echo "- Chan: ${chan_address}"
|
||||
echo "- Dina: ${dina_address}"
|
||||
|
||||
echo "======================================================"
|
||||
echo
|
||||
echo "Waiting for Lightning nodes to sync the blockchain"
|
||||
echo -n "- Waiting for Alice chain sync..."
|
||||
wait-for-node Alice "cli getinfo | jq -e \".synced_to_chain == true\""
|
||||
echo -n "- Waiting for Bob chain sync..."
|
||||
wait-for-node Bob "cli getinfo | jq -e \".blockheight > 100\""
|
||||
echo -n "- Waiting for Chan chain sync..."
|
||||
wait-for-node Chan "cli getinfo | jq -e \".blockHeight > 100\""
|
||||
echo -n "- Waiting for Dina chain sync..."
|
||||
wait-for-node Dina "cli getinfo | jq -e \".synced_to_chain == true\""
|
||||
echo "All nodes synched to chain"
|
||||
|
||||
echo "======================================================"
|
||||
echo
|
||||
echo "Setting up connections and channels"
|
||||
echo "- Alice to Bob"
|
||||
|
||||
# Connect only if not already connected
|
||||
run-in-node Alice "cli listpeers | jq -e '.peers[] | select(.pub_key == \"${bob_address}\")' > /dev/null" \
|
||||
&& {
|
||||
echo "- Alice already connected to Bob"
|
||||
} || {
|
||||
echo "- Open connection from Alice node to Bob's node"
|
||||
wait-for-node Alice "cli connect ${bob_address}@Bob"
|
||||
}
|
||||
|
||||
# Create channel only if not already created
|
||||
run-in-node Alice "cli listchannels | jq -e '.channels[] | select(.remote_pubkey == \"${bob_address}\")' > /dev/null" \
|
||||
&& {
|
||||
echo "- Alice->Bob channel already exists"
|
||||
} || {
|
||||
echo "- Create payment channel Alice->Bob"
|
||||
wait-for-node Alice "cli openchannel ${bob_address} 1000000"
|
||||
}
|
||||
echo "Bob to Chan"
|
||||
run-in-node Bob "cli listpeers | jq -e '.peers[] | select(.id == \"${chan_address}\")' > /dev/null" \
|
||||
&& {
|
||||
echo "- Bob already connected to Chan"
|
||||
} || {
|
||||
echo "- Open connection from Bob's node to Chan's node"
|
||||
wait-for-node Bob "cli connect ${chan_address}@Chan"
|
||||
}
|
||||
run-in-node Bob "cli listchannels | jq -e '.channels[] | select(.destination == \"${chan_address}\")' > /dev/null" \
|
||||
&& {
|
||||
echo "- Bob->Chan channel already exists"
|
||||
} || {
|
||||
echo "- Create payment channel Bob->Chan"
|
||||
wait-for-node Bob "cli fundchannel ${chan_address} 1000000"
|
||||
}
|
||||
echo "Chan to Dina"
|
||||
run-in-node Chan "cli peers | jq -e '.[] | select(.nodeId == \"${dina_address}\" and .state == \"CONNECTED\")' > /dev/null" \
|
||||
&& {
|
||||
echo "- Chan already connected to Dina"
|
||||
} || {
|
||||
echo "- Open connection from Chan's node to Dina's node"
|
||||
wait-for-node Chan "cli connect --uri=${dina_address}@Dina"
|
||||
}
|
||||
run-in-node Chan "cli channels | jq -e '.[] | select(.nodeId == \"${dina_address}\" and .state == \"NORMAL\")' > /dev/null" \
|
||||
&& {
|
||||
echo "- Chan->Dina channel already exists"
|
||||
} || {
|
||||
echo "- Create payment channel Chan->Dina"
|
||||
wait-for-node Chan "cli open --nodeId=${dina_address} --fundingSatoshis=1000000"
|
||||
}
|
||||
echo "All channels created"
|
||||
echo "======================================================"
|
||||
echo
|
||||
echo "Waiting for channels to be confirmed on the blockchain"
|
||||
echo -n "- Waiting for Alice channel confirmation..."
|
||||
wait-for-node Alice "cli listchannels | jq -e '.channels[] | select(.remote_pubkey == \"${bob_address}\" and .active == true)'"
|
||||
echo "- Alice->Bob connected"
|
||||
echo -n "- Waiting for Bob channel confirmation..."
|
||||
wait-for-node Bob "cli listchannels | jq -e '.channels[] | select(.destination == \"${chan_address}\" and .active == true)'"
|
||||
echo "- Bob->Chan connected"
|
||||
echo -n "- Waiting for Chan channel confirmation..."
|
||||
wait-for-node Chan "cli channels | jq -e '.[] | select (.nodeId == \"${dina_address}\" and .state == \"NORMAL\")' > /dev/null"
|
||||
echo "- Chan->Dina connected"
|
||||
echo "All channels confirmed"
|
||||
|
||||
|
||||
echo "======================================================"
|
||||
echo -n "Check Alice's route to Dina: "
|
||||
run-in-node Alice "cli queryroutes --dest \"${dina_address}\" --amt 10000" > /dev/null 2>&1 \
|
||||
&& {
|
||||
echo "Alice has a route to Dina"
|
||||
} || {
|
||||
echo "Alice doesn't yet have a route to Dina"
|
||||
echo "Waiting for Alice graph sync. This may take a while..."
|
||||
wait-for-node Alice "cli describegraph | jq -e '.edges | select(length >= 1)'"
|
||||
echo "- Alice knows about 1 channel"
|
||||
wait-for-node Alice "cli describegraph | jq -e '.edges | select(length >= 2)'"
|
||||
echo "- Alice knows about 2 channels"
|
||||
wait-for-node Alice "cli describegraph | jq -e '.edges | select(length == 3)'"
|
||||
echo "- Alice knows about all 3 channels!"
|
||||
echo "Alice knows about all the channels"
|
||||
}
|
||||
|
||||
echo "======================================================"
|
||||
echo
|
||||
echo "Get 10k sats invoice from Dina"
|
||||
dina_invoice=$(run-in-node Dina "cli addinvoice 10000 | jq -r .payment_request")
|
||||
echo "- Dina invoice: "
|
||||
echo ${dina_invoice}
|
||||
|
||||
echo "======================================================"
|
||||
echo
|
||||
echo "Attempting payment from Alice to Dina"
|
||||
run-in-node Alice "cli payinvoice --json --force ${dina_invoice} | jq -e '.failure_reason == \"FAILURE_REASON_NONE\"'" > /dev/null && {
|
||||
echo "Successful payment!"
|
||||
} ||
|
||||
{
|
||||
echo "Payment failed"
|
||||
}
|
||||
@ -1,37 +0,0 @@
|
||||
#!/bin/bash
|
||||
|
||||
echo Getting node IDs
|
||||
alice_address=$(docker-compose exec -T Alice bash -c "lncli -n regtest getinfo | jq -r .identity_pubkey")
|
||||
bob_address=$(docker-compose exec -T Bob bash -c "lightning-cli getinfo | jq -r .id")
|
||||
chan_address=$(docker-compose exec -T Chan bash -c "eclair-cli -s -j -p eclair getinfo| jq -r .nodeId")
|
||||
dina_address=$(docker-compose exec -T Dina bash -c "lncli -n regtest getinfo | jq -r .identity_pubkey")
|
||||
|
||||
# Let's tell everyone what we found!
|
||||
echo Alice: ${alice_address}
|
||||
echo Bob: ${bob_address}
|
||||
echo Chan: ${chan_address}
|
||||
echo Dina: ${dina_address}
|
||||
|
||||
echo Setting up channels...
|
||||
echo Alice to Bob
|
||||
docker-compose exec -T Alice lncli -n regtest connect ${bob_address}@Bob
|
||||
docker-compose exec -T Alice lncli -n regtest openchannel ${bob_address} 1000000
|
||||
|
||||
echo Bob to Chan
|
||||
docker-compose exec -T Bob lightning-cli connect ${chan_address}@Chan
|
||||
docker-compose exec -T Bob lightning-cli fundchannel ${chan_address} 1000000
|
||||
|
||||
echo Chan to Dina
|
||||
docker-compose exec -T Chan eclair-cli -p eclair connect --uri=${dina_address}@Dina
|
||||
docker-compose exec -T Chan eclair-cli -p eclair open --nodeId=${dina_address} --fundingSatoshis=1000000
|
||||
|
||||
echo Get 10k sats invoice from Dina
|
||||
dina_invoice=$(docker-compose exec -T Dina bash -c "lncli -n regtest addinvoice 10000 | jq -r .payment_request")
|
||||
|
||||
echo Dina invoice ${dina_invoice}
|
||||
|
||||
echo Wait for channel establishment - 60 seconds for 6 blocks
|
||||
sleep 60
|
||||
|
||||
echo Alice pays Dina 10k sats, routed around the network
|
||||
docker-compose exec -T Alice lncli -n regtest payinvoice --json --inflight_updates -f ${dina_invoice}
|
||||
Loading…
Reference in New Issue