Merge pull request #84 from cerc-io/0-7-0-upgrade-guide
v0.6.0 -> v0.7.0 upgrade guide
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testnet/validator upgrade 0.6.0 - 0.7.0.md
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# Validator Upgrade Guide for laconic_81337-5 Testnet v0.6.0 -> v0.7.0
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This guide assumes you have followed the instructions to crete a systemd service or docker container validator node v0.6.0 and you perform the upgrade on a machine running v0.6.0
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It is highly recommended to make the backup of your datadir after you stop v0.6.0 and before you start v0.7.0. Unless you changed your datadir, it should be located in `~/.laconicd`
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## Systemd service
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Skip this section if you use docker
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This is very similar to building v0.6.0. We keep v 0.6.0 running until v0.7.0 is built and only after the successful build we should replace 0.6.0 binary with v0.7.0. This is to avoid jailing your validator for long downtime.
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The general upgrade plan is the following:
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1. Install Go v1.19.5 (we used 1.18 for v0.6.0)
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2. Remove old copy of the github repository and build directory
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3. Download the latest laconicd repository and checkout v0.7.0
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4. Build laconicd binary (but not install in this moment)
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5. Stop laconicd systemd service
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6. Install recently built new version of laconicd
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7. Start laconicd service
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>***You have ~10 minutes after step 5 to complete steps 6 and 7 before your validator is jailed for downtime. Getting jailed for downtime is not a disaster, however would require manual unjailing.***
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### Install Go 1.19
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```sh
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# Update Ubuntu
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sudo apt update
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sudo apt upgrade -y
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# Install required software packages
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sudo apt install git curl build-essential make jq -y
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# Remove any existing installation of `go`
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sudo rm -rf /usr/local/go
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# Install Go version 1.19.5
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curl https://dl.google.com/go/go1.19.5.linux-amd64.tar.gz | sudo tar -C/usr/local -zxvf -
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```
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Check the version of go installed
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```sh
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go version
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# Should return something like: go version go1.19.5 linux/amd64
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```
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---
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### Remove old copy of `laconicd` build
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>Attention should be paid that the directory mentioned below is `~/laconicd` and NOT `~/.laconicd`. The latter is the data directory containing all your node data and configuration and it must be kept during the upgrade.
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```sh
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# Remove the previous build directory
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cd ~
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rm -rf laconicd
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```
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---
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### Download `laconicd` repository
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```sh
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git clone https://github.com/cerc-io/laconicd.git
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cd laconicd
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# Checkout 0.7.0 branch
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git fetch --all
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git checkout v0.7.0
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```
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---
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### Build the new version of `laconicd`
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```sh
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# Build laconic (but not install at this moment)
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make VERSION=v0.7.0 build
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```
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---
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### Stop `laconicd` systemd service
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```sh
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sudo systemctl stop laconicd
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```
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>***Make sure the service is stopped***
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```sh
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sudo systemctl status laconicd
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```
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---
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### Install new `laconicd` version
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```sh
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make VERSION=v0.7.0 install
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```
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Verify your installation
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```sh
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laconicd version
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```
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This should return `0.7.0`
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---
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### Start `laconicd` systemd service
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```sh
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sudo systemctl start laconicd
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```
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Verify that the node joined the network and produces new blocks
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```sh
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journalctl -f -u laconicd
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```
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---
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## Docker container
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Upgrade plan:
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1. Stop running v0.6.0 container
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2. Delete v0.6.0 container
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3. Create v0.7.0 container
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4. Start v0.7.0 container
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>***You have ~10 minutes to complete the upgrade procedure before your validator is jailed for downtime. Getting jailed for downtime is not a disaster, however would require manual unjailing.***
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### Stop running v0.6.0 container
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```sh
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docker stop laconic-testnet-5
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```
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---
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### Delete v0.6.0 container
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```sh
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docker rm laconic-testnet-5
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```
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---
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### Create v0.7.0 container
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```sh
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docker create --name laconic-testnet-5 \
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--restart always \
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-v ~/.laconicd:/root/.laconicd \
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-p 26656:26656 \
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-p 127.0.0.1:26657:26657 \
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-p 127.0.0.1:26660:26660 \
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git.vdb.to/cerc-io/laconicd/laconicd:v0.7.0 \
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laconicd start --gql-playground --gql-server --log_level=warn
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```
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---
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### Start v0.7.0 container
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```sh
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docker start laconic-testnet-5
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```
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Verify that the node joined the network and produces new blocks
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```sh
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docker logs -f laconic-testnet-5
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```
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---
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