Playbook and instructions for Update-parity-version
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phahulin
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2. [Make a spec.json hard-fork](./docs/Spec-hardfork.md)
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3. [Update scripts for validator nodes](./docs/Update-scripts-validator.md)
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4. [Set min_gas_price for validator nodes](./docs/Set-min-gas-price.md)
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5. [Update parity version](./docs/Update-parity-version.md)
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## Update parity to a newer version
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0. this guide assumes that you're running this playbook from the same machine that you used to make initial deployment of your node. So that you already have `python` and `ansible` installed, and you have the correct ssh keypair to root-access the node.
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### Running the update
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1. clone this repository if you haven't done so before
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```
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git clone https://github.com/poanetwork/poa-devops.git
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cd poa-devops
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```
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or pull the latest changes
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```
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cd poa-devops
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git pull origin master
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```
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2. create `group_vars/all` file:
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```
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cp group_vars/upd-parity-version.example group_vars/all
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```
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and change the following variables:
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* `poa_role` - role of the node on the network (one of `bootnode`, `validator`, `moc`, `explorer`)
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don't change other options
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3. create/edit `hosts` file and put your node's ip address (assuming it's 192.0.2.1) there with the following header:
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```
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[upd-parity-version]
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192.0.2.1
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```
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**NOTE**: if you're updating an existing file, make sure you remove other tags `[...]` and ips.
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4. run the playbook:
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```
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ansible-playbook -i hosts upd-parity-version.yml
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```
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### Verifying the update
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0. playbook run should be completed without errors
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1. open network statistic webpage:
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- for sokol test network: https://sokol-netstat.poa.network
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- for core main network: https://core-netstat.poa.network
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check that your node is "green" and is catching new blocks. It may take 2-3 minutes to fully start and reconnect
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2. connect to the node
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```
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ssh root@192.0.2.1
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```
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and check parity version (replace `bootnode` with correct role name ,e.g. `validator`):
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```
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/home/bootnode/parity --version
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```
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sample output:
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```
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Parity
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version Parity/v1.9.2-beta-0feb0bb-20180201/x86_64-linux-gnu/rustc1.23.0
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Copyright 2015, 2016, 2017, 2018 Parity Technologies (UK) Ltd
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License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
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This is free software: you are free to change and redistribute it.
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There is NO WARRANTY, to the extent permitted by law.
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By Wood/Paronyan/Kotewicz/Drwięga/Volf
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Habermeier/Czaban/Greeff/Gotchac/Redmann
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```
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3. during the following day check status of your node on network status webpage and associated functions (e.g. for validators - are block rewards still being sent from your mining key to your payout key).
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### Rollback to the previous version (in case of problems)
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**NOTE**: if you get any errors please consult the POA Team first, probably you have a minor issue and don't need to rollback
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1. connect to the node:
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```
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ssh root@192.0.2.1
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```
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2. switch to your home folder (replace `bootnode` with correct role name):
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```
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cd /home/bootnode
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```
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3. stop services:
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```
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systemctl stop poa-netstats
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systemctl stop poa-parity
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```
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4. locate the backup folder:
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```
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ls backups-version
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```
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it contains folders labeled by the time backup was created in format`<year><month><day>T<hour><minute><second>`, e.g.
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```
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# ls backups-version
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20180208T152105 20180209T214517
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```
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copy the version number that corresponds to this day. In the following examples we assume that it's `20180209T214517`.
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5. make sure you have your mining key data (keyfile, password, address) available to you
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6. remove files from the new version:
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```
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rm -rf parity_data
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rm parity
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rm node.toml
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```
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7. restore previous versions of these files from backup (note dots `.` at the end of each line here, they are important):
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```
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cp -a backups-version/20180209T214517/parity .
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cp -a backups-version/20180209T214517/parity_data .
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cp -a backups-version/20180209T214517/node.toml .
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```
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8. check parity version (must be previous one):
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```
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./parity --version
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```
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sample output:
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```
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Parity
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version Parity/v1.8.4-beta-483c306-20171213/x86_64-linux-gnu/rustc1.22.1
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Copyright 2015, 2016, 2017 Parity Technologies (UK) Ltd
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License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
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This is free software: you are free to change and redistribute it.
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There is NO WARRANTY, to the extent permitted by law.
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By Wood/Paronyan/Kotewicz/Drwięga/Volf
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Habermeier/Czaban/Greeff/Gotchac/Redmann
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```
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9. restart services
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```
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systemctl start poa-parity
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systemctl start poa-netstats
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```
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10. open network statistic webpage:
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- for sokol test network: https://sokol-netstat.poa.network
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- for core main network: https://core-netstat.poa.network
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check that your node is "green" and is catching new blocks. It may take 2-3 minutes to fully start and reconnect
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---
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# bootnode | moc | validator | explorer | netstat
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poa_role: "moc"
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poa_role: "bootnode"
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# repo to fetch HFs from
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MAIN_REPO_FETCH: "poanetwork"
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---
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# bootnode | moc | validator | explorer | netstat
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poa_role: "validator"
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# repo to fetch new binaries from
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PARITY_BIN_LOC: "http://d1h4xl4cr1h0mo.cloudfront.net/v1.9.2/x86_64-unknown-linux-gnu/parity"
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PARITY_BIN_SHA256: "3604a030388cd2c22ebe687787413522106c697610426e09b3c5da4fe70bbd33"
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# backup options
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backup_parity_data: "on"
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# do full resync
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resync: "on"
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# strings to remove from node.toml
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bootnode_node_toml_lines_to_remove:
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- section: "rpc"
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option: "threads"
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# strings to add in node.toml
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bootnode_node_toml_lines_to_add:
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- section: "rpc"
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option: "processing_threads"
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value: 4
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---
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# bootnode | moc | validator | explorer | netstat
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poa_role: "bootnode"
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# repo to fetch new binaries from
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PARITY_BIN_LOC: "http://d1h4xl4cr1h0mo.cloudfront.net/v1.9.2/x86_64-unknown-linux-gnu/parity"
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PARITY_BIN_SHA256: "3604a030388cd2c22ebe687787413522106c697610426e09b3c5da4fe70bbd33"
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# backup options
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backup_parity_data: "on"
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# do full resync
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resync: "on"
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# strings to remove from node.toml
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bootnode_node_toml_lines_to_remove:
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- section: "rpc"
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option: "threads"
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# strings to add in node.toml
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bootnode_node_toml_lines_to_add:
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- section: "rpc"
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option: "processing_threads"
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value: 4
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---
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- name: Check that node role is correct
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stat:
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path: "{{ home }}"
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register: role_home_folder
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failed_when: not role_home_folder.stat.exists
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- name: Check that the netstats service is installed
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stat:
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path: /etc/systemd/system/poa-netstats.service
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register: netstats_service_file
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- name: Shutdown poa-netstats service
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service: name=poa-netstats state=stopped
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when: netstats_service_file.stat.exists
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- name: Shutdown poa-parity service
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service: name=poa-parity state=stopped
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- name: Create directory for parity-version backups
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file: path="{{ backups_folder }}" state=directory
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- name: Backup parity binary
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command: cp -a {{ home }}/parity {{ backups_folder }}/parity
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- name: Backup parity_data
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command: cp -a "{{ home }}/parity_data" {{ backups_folder }}/parity_data
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when: (backup_parity_data or "off") == "on"
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- name: Backup node.toml
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command: cp -a "{{ home }}/node.toml" {{ backups_folder }}/node.toml
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- name: Download new parity binary version
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get_url: url="{{ PARITY_BIN_LOC }}" dest="{{ home }}/parity" mode=0755 checksum="sha256:{{ PARITY_BIN_SHA256 }}"
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- name: Remove lines from node.toml (bootnode)
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ini_file:
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path: "{{ home }}/node.toml"
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section: "{{ item['section'] }}"
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option: "{{ item['option'] }}"
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state: absent
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with_items: "{{ bootnode_node_toml_lines_to_remove }}"
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when: poa_role == "bootnode"
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- name: Add lines to node.toml (bootnode)
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ini_file:
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path: "{{ home }}/node.toml"
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value: "{{ item['value'] }}"
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section: "{{ item['section'] }}"
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option: "{{ item['option'] }}"
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state: present
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with_items: "{{ bootnode_node_toml_lines_to_add }}"
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when: poa_role == "bootnode"
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- name: Remove old database
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command: "./parity --config node.toml db kill"
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args:
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chdir: "{{ home }}"
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become: true
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become_user: "{{ poa_role }}"
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when: (resync or "off") == "on"
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- name: Launch poa-parity service
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service: name=poa-parity state=started
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- name: Launch poa-netstats service
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service: name=poa-netstats state=started
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when: netstats_service_file.stat.exists
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- hosts: upd-parity-version
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vars:
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date: "{{ ansible_date_time.iso8601_basic_short }}"
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home: "/home/{{ poa_role }}"
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backups_folder: "{{ home }}/backups-version/{{ date }}"
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user: ubuntu
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become: true
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become_user: root
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roles:
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- upd-parity-version
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