update docs and dockefile, adjust nproc to variable again

Dockerfile

@@ -1,10 +1,7 @@
 FROM debian:latest
-# Run 'docker build .' from github clone
-# docker run -p80:3001 -v $(pwd)/dot-zcash:/home/zcashd/.zcash
 
 RUN apt-get update \
     && apt-get install -y gnupg2 wget libzmq3-dev git \
-# zcash build (see RTD User Guide):
     && apt-get -qqy install \
         build-essential pkg-config libc6-dev m4 g++-multilib \
         autoconf libtool ncurses-dev unzip git python python-zmq \
@@ -29,8 +26,7 @@ RUN git clone https://github.com/zcash-hackworks/zcash-patched-for-explorer.git
 WORKDIR /home/zcashd/zcash-patched-for-explorer
 RUN git checkout v2.0.2-insight-explorer
 
-# keep jobs low to minimize chances of running out of memory
-RUN zcutil/build.sh -j2
+RUN zcutil/build.sh -j$(nproc)
 RUN zcutil/fetch-params.sh
 
 WORKDIR /home/zcashd/

README.md

@@ -2,7 +2,7 @@ This repo contains a Dockerfile to run and set up an insight explorer for the Zc
 
 To build the image run:
 
-`docker build -t ianamunoz/zcash-insight-explorer:v1.1.1 .`
+`docker build -t ianamunoz/zcash-insight-explorer .`
 
 * Note that this build will pull in all the parameters so it is a bit heavy at 2.48GB. It will require some bandwidth and beware of your /var/lib directory if you have a default docker install.
 
@@ -11,7 +11,11 @@ To run locally without to test operation run:
 ```
 docker run -d \
 -p 80:3001 \
-ianamunoz/zcash-insight-explorer:v1.1.1
+ianamunoz/zcash-insight-explorer
 ```
 
 The `docker-service.sh` file shows you might might manually run it as a service behind a traefik reverse proxy as seen for example in the `docker-compose.yml`.
+
+ToDo: tags for versions
+
+Set up ad-hoc [Google Cloud](.docs/ad_hoc_gcp.md) instance.

docs/ad_hoc_gcp.md

@@ -0,0 +1,45 @@
+Create an instance:
+
+```
+gcloud compute instances create testnet-explorer \
+--zone=us-east1-b \
+--machine-type=n1-standard-1 \
+--subnet=default \
+--network-tier=PREMIUM \
+--tags=https-server \
+--image=debian-9 \
+--image-project=debian-cloud \
+--boot-disk-size=24GB \
+--boot-disk-type=pd-standard \
+--boot-disk-device-name=testnet-explorer
+```
+
+ssh into the instance and install docker (using debian here for sanity)
+```
+curl -fsSL https://get.docker.com -o get-docker.sh
+sh get-docker.sh
+sudo usermad -aG $(whoami) docker
+```
+update and install dependencies
+```
+sudo apt-get update -y && sudo apt-get upgrade
+sudo apt-get install git
+```
+Clone repo and build image
+```
+git clone https://github.com/ianamunoz/zcash-insight-explorer.git
+cd zcash-insight-explorer
+docker build -t zcash-hackworks/zcash-insight-explorer .
+```
+
+**Edit  `docker-compose.yml` and edit your host records etc.**
+**Add DNS records to your public instance IP**
+
+Stand up the stack:
+```
+docker stack deploy --compose-file docker-compose.yml testnet-explorer
+```
+
+Visit your domain to pick up letsencrypt cert.
+
+Fin.