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BUILD-zcashd-tnb-artifacts.md

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Building zcashd testnet in a box artifacts

The only change made to a "testnet in a box" artifacts is changing the network magic numbers defined in chainparams.cpp and the branchID in upgrades.cpp.

To produce a new build, the tnbox.py script included in this repo is run against a zcash git clone, then a normal build process is performed.

A Tekon task is included to automate the process.

Make the script tnbox.py script available inside the box.

Install the minio client https://min.io/download#/

Get the minio admin secret

MINIO_SECRETACCESSKEY=$(kubectl get secrets minio-secret-key -o jsonpath="{.data.SECRETACCESSKEY}" | base64 -d)

Configure mc client

mc config host add \
  zcash-testnet-in-a-box http://localhost:9000 minio $MINIO_SECRETACCESSKEY \
  --api S3v4

Upload the script

mc cp ./tools/tnbox.py zcash-testnet-in-a-box/binaries/

Create the tekton task for the tnb build

Edit tekton/tasks/build-binary-tnb.yml for the git version to build from.

Then run it:

kubectl create -f tekton/tasks/build-binary-tnb.yml

Follow the task to completion

Watch either the pod logs or task status on the Tekton dashboard.

kubectl logs -l build=zcashd-tnb  -c step-upload-file

Prodcues output like:

2020/07/20 13:56:08 Skipping step because a previous step failed
Added `minio` successfully.
+ tar --strip-components 3 -zvcf ./zcashd-tnb-artifacts-d292376.tgz /workspace/source/src/zcashd /workspace/source/src/zcash-cli /workspace/source/src/zcash-gtest /workspace/source/src/zcash-tx
tar: removing leading '/' from member names
workspace/source/src/zcashd
workspace/source/src/zcash-cli
workspace/source/src/zcash-gtest
workspace/source/src/zcash-tx
+ mc cp ./zcashd-tnb-artifacts-d292376.tgz minio/binaries/
`zcashd-tnb-artifacts-d292376.tgz` -> `minio/binaries/zcashd-tnb-artifacts-d292376.tgz`
Total: 0 B, Transferred: 155.33 MiB, Speed: 378.84 MiB/s

The compiled archive will be uploaded to minio identified but the git commit hash build from.
zcashd-tnb-artifacts-d292376.tgz` -> `minio/binaries/zcashd-tnb-artifacts-d292376.tgz