# Release Guide

## Check Your Environment

To make sure you could successfully complete the release for DolphinScheduler, you should check your environment and make sure
all conditions are met, if any or them are missing, you should install them and make sure them work.

```shell
# JDK 1.8 above is requests
java -version
# Maven requests
mvn -version
```

## GPG Settings

### Install GPG

Download installation package on [official GnuPG website](https://www.gnupg.org/download/index.html).
The command of GnuPG 1.x version can differ a little from that of 2.x version.
The following instructions take `GnuPG-2.1.23` version for example.

After the installation, execute the following command to check the version number.

```shell
gpg --version
```

### Create Key

After the installation, execute the following command to create key.

This command indicates `GnuPG-2.x` can be used:

```shell
gpg --full-gen-key
```

This command indicates `GnuPG-1.x` can be used:

```shell
gpg --gen-key
```

Finish the key creation according to instructions, **Notice: Please use Apache mails and its password for key creation.**

```shell
gpg (GnuPG) 2.0.12; Copyright (C) 2009 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Please select what kind of key you want:
  (1) RSA and RSA (default)
  (2) DSA and Elgamal
  (3) DSA (sign only)
  (4) RSA (sign only)
Your selection? 1
RSA keys may be between 1024 and 4096 bits long.
What keysize do you want? (2048) 4096
Requested keysize is 4096 bits
Please specify how long the key should be valid.
        0 = key does not expire
     <n>  = key expires in n days
     <n>w = key expires in n weeks
     <n>m = key expires in n months
     <n>y = key expires in n years
Key is valid for? (0)
Key does not expire at all
Is this correct? (y/N) y

GnuPG needs to construct a user ID to identify your key.

Real name: ${Input username}
Email address: ${Input email}
Comment: ${Input comment}
You selected this USER-ID:
   "${Inputed username} (${Inputed comment}) <${Inputed email}>"

Change (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? O
You need a Passphrase to protect your secret key. # Input your Apache mail passwords
```

### Check Generated Key

```shell
gpg --list-keys
```

Execution Result:

```shell
pub   4096R/85E11560 2019-11-15
uid                  ${Username} (${Comment}) <{Email}>
sub   4096R/A63BC462 2019-11-15
```

Among them, 85E11560 is public key ID.

### Upload the Public Key to Key Server

The command is as follow:

```shell
gpg --keyserver hkp://pool.sks-keyservers.net --send-key 85E11560
```

`pool.sks-keyservers.net` is randomly chosen from [public key server](https://sks-keyservers.net/status/).
Each server will automatically synchronize with one another, so it would be okay to choose any one, a backup keys servers
is `gpg --keyserver hkp://keyserver.ubuntu.com --send-key <YOUR_KEY_ID>`

## Apache Maven Central Repository Release

### Set `settings-security.xml` and `settings.xml`

In this section, we add Apache server maven configuration to prepare the release, we have to add `settings-security.xml` according
to [here](http://maven.apache.org/guides/mini/guide-encryption.html) firstly and then change your `~/.m2/settings.xml` like below

```xml
<settings>
  <servers>
    <server>
      <id>apache.snapshots.https</id>
      <username> <!-- APACHE LDAP username --> </username>
      <password> <!-- APACHE LDAP encrypted password --> </password>
    </server>
    <server>
      <id>apache.releases.https</id>
      <username> <!-- APACHE LDAP username --> </username>
      <password> <!-- APACHE LDAP encrypted password --> </password>
    </server>
  </servers>
</settings>
```

### Set Release in Environment

We will use the release version, your github name and your Apache username below several times, so it is better to store
it to bash variable for easier use.

```shell
VERSION=<THE-VERSION-YOU-RELEASE>
GH_USERNAME=<YOUR-GITHUB-USERNAME>
A_USERNAME=<YOUR-APACHE-USERNAME>
```

> Note: We can use the variable directly in you bash after we set environment, without changing anything. For example, we
> can use command `git clone -b "${VERSION}"-prepare https://github.com/apache/dolphinscheduler.git` to clone the release branch
> and it can be successful by converting the `"${VERSION}"` to `<THE-VERSION-YOU-RELEASE>`. But you have to change `<VERSION>` manually in
> some of not bash step like [vote mail](#vote-procedure), we are using `<VERSION>` instead of `"${VERSION}"` to notice release
> manager they have to change by hand.

### Create Release Branch

In this section, we dwonload source code from github and create new branch to release

```shell
git clone -b "${VERSION}"-prepare https://github.com/apache/dolphinscheduler.git
cd ~/dolphinscheduler/
git pull
git checkout -b "${VERSION}"-release
git push origin "${VERSION}"-release
```

### Pre-Release Check

```shell
mvn release:prepare -Prelease -Darguments="-Dmaven.test.skip=true -Dcheckstyle.skip=true -Dmaven.javadoc.skip=true -Dspotless.check.skip=true" -DautoVersionSubmodules=true -DdryRun=true -Dusername="${GH_USERNAME}"
```

* `-Prelease`: choose release profile, which will pack all the source codes, jar files and executable binary packages.
* `-DautoVersionSubmodules=true`: it can make the version number is inputted only once and not for each sub-module.
* `-DdryRun=true`: dry run which means not to generate or submit new version number and new tag.

### Prepare for the Release

First, clean local pre-release check information.

```shell
mvn release:clean
```

Then, prepare to execute the release.

```shell
mvn release:prepare -Prelease -Darguments="-Dmaven.test.skip=true -Dcheckstyle.skip=true -Dmaven.javadoc.skip=true -Dspotless.check.skip=true" -DautoVersionSubmodules=true -DpushChanges=false -Dusername="${GH_USERNAME}"
```

It is basically the same as the previous rehearsal command, but deleting `-DdryRun=true` parameter.

* `-DpushChanges=false`: do not submit the edited version number and tag to GitHub automatically.

> Note: You have to config your git `user.name` and `user.password` by command `git config --global user.email "you@example.com"`
> and `git config --global user.name "Your Name"` if you meet some mistake like **Please tell me who you are.**
> from git.

After making sure there is no mistake in local files, submit them to GitHub.

```shell
git push -u origin "${VERSION}"-release
git push origin --tags
```

<!-- markdown-link-check-disable -->

> Note1: In this step, you should use github token for password because native password no longer supported, you can see
> https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/creating-a-personal-access-token for more
> detail about how to create token about it.
>
> Note2: After the command done, it will auto-created `release.properties` file and `*.Backup` files, their will be need
> in the following command and DO NOT DELETE THEM

<!-- markdown-link-check-enable -->

### Deploy the Release

```shell
mvn release:perform -Prelease -Darguments="-Dmaven.test.skip=true -Dcheckstyle.skip=true -Dmaven.javadoc.skip=true -Dspotless.check.skip=true" -DautoVersionSubmodules=true -Dusername="${GH_USERNAME}"
```

After that command is executed, the version to be released will be uploaded to Apache staging repository automatically.
Go to [apache staging repositories](https://repository.apache.org/#stagingRepositories) and login by Apache LDAP. then you can see the uploaded version, the content of `Repository` column is the `${STAGING.REPOSITORY}`.
Click `Close` to tell Nexus that the construction is finished, because only in this way, this version can be usable.
If there is any problem in gpg signature, `Close` will fail, but you can see the failure information through `Activity`.

## Apache SVN Repository Release

### Checkout dolphinscheduler Release Directory

If there is no local work directory, create one at first.

```shell
mkdir -p ~/ds_svn/dev/
cd ~/ds_svn/dev/
```

After the creation, checkout dolphinscheduler release directory from Apache SVN.

```shell
svn --username="${A_USERNAME}" co https://dist.apache.org/repos/dist/dev/dolphinscheduler
cd ~/ds_svn/dev/dolphinscheduler
```

### Export your new gpg KEYS to release(optional)

Only if the first time you release with this gpg KEY, including it is you first release, or you change your KEY. You should
change working directory to another one because this step need checkout and change KEYS in release directory.

```shell
mkdir -p ~/ds_svn/release/
cd ~/ds_svn/release/
svn --username="${A_USERNAME}" co https://dist.apache.org/repos/dist/release/dolphinscheduler
gpg -a --export <YOUR-GPG-KEY-ID> >> KEYS
svn add *
svn --username="${A_USERNAME}" commit -m "new key <YOUR-GPG-KEY-ID> add"
```

> NOTE: it may take a few minutes to sync to the mirror in your first time checkout, because it will download all the files

### Add the Release Content to SVN Directory

Create folder by version number.

```shell
mkdir -p ~/ds_svn/dev/dolphinscheduler/"${VERSION}"
cd ~/ds_svn/dev/dolphinscheduler/"${VERSION}"
```

Add source code packages, binary packages and executable binary packages to SVN working directory.

```shell
# Source and binary tarball for main code
cp -f ~/dolphinscheduler/dolphinscheduler-dist/target/*.tar.gz ~/ds_svn/dev/dolphinscheduler/"${VERSION}"
cp -f ~/dolphinscheduler/dolphinscheduler-dist/target/*.tar.gz.asc ~/ds_svn/dev/dolphinscheduler/"${VERSION}"
```

### Generate sign files

```shell
shasum -a 512 apache-dolphinscheduler-"${VERSION}"-src.tar.gz >> apache-dolphinscheduler-"${VERSION}"-src.tar.gz.sha512
shasum -b -a 512 apache-dolphinscheduler-"${VERSION}"-bin.tar.gz >> apache-dolphinscheduler-"${VERSION}"-bin.tar.gz.sha512
```

### Commit to Apache SVN

```shell
cd ~/ds_svn/dev/dolphinscheduler
svn add *
svn --username="${A_USERNAME}" commit -m "release ${VERSION}"
```

## Check Release

### Check sha512 hash

```shell
shasum -c apache-dolphinscheduler-"${VERSION}"-src.tar.gz.sha512
shasum -c apache-dolphinscheduler-"${VERSION}"-bin.tar.gz.sha512
```

### Check gpg Signature

First, import releaser's public key.
Import KEYS from SVN repository to local. (The releaser does not need to import again; the checking assistant needs to import it, with the user name filled as the releaser's. )

```shell
curl https://dist.apache.org/repos/dist/release/dolphinscheduler/KEYS >> KEYS
gpg --import KEYS
gpg --edit-key "${A_USERNAME}"
  > trust

Please decide how far you trust this user to correctly verify other users' keys
(by looking at passports, checking fingerprints from different sources, etc.)

  1 = I don't know or won't say
  2 = I do NOT trust
  3 = I trust marginally
  4 = I trust fully
  5 = I trust ultimately
  m = back to the main menu

Your decision? 5

  > save
```

Then, check the gpg signature.

```shell
gpg --verify apache-dolphinscheduler-"${VERSION}"-src.tar.gz.asc
gpg --verify apache-dolphinscheduler-"${VERSION}"-bin.tar.gz.asc
```

> Note: You have to create gpg signature manually when you can not find your `asc` file, the command
> `gpg --armor --detach-sign --digest-algo=SHA512 apache-dolphinscheduler-"${VERSION}"-bin.tar.gz` and
> `gpg --armor --detach-sign --digest-algo=SHA512 apache-dolphinscheduler-"${VERSION}"-src.tar.gz` will create them

### Check Released Files

#### Check source package

Decompress `apache-dolphinscheduler-<VERSION>-src.tar.gz` then check the following items:

* Check whether source tarball is oversized for including nonessential files
* `LICENSE` and `NOTICE` files exist
* Correct year in `NOTICE` file
* There is only text files but no binary files
* All source files have ASF headers
* Codes can be compiled and pass the unit tests (mvn install)
* The contents of the release match with what's tagged in version control (diff -r a verify_dir tag_dir)
* Check if there is any extra files or folders, empty folders for example

#### Check binary packages

Decompress `apache-dolphinscheduler-<VERSION>-src.tar.gz` to check the following items:

- `LICENSE` and `NOTICE` files exist
- Correct year in `NOTICE` file
- Check the third party dependency license:
  - The software have a compatible license
  - All software licenses mentioned in `LICENSE`
  - All the third party dependency licenses are under `licenses` folder
  - If it depends on Apache license and has a `NOTICE` file, that `NOTICE` file need to be added to `NOTICE` file of the release

## Call for a Vote

### Update Release Notes

You should create a release note in GitHub by [new release note](https://github.com/apache/dolphinscheduler/releases/new).
It should be done before vote mail because we need the release note in the mail. You could use command
`python release.py changelog` in directory `tools/release` to creat the changelog.

> NOTE: Or if you prefer to create manually, you can use command `git log --pretty="- %s" <PREVIOUS-RELEASE-SHA>..<CURRENT-RELEASE-SHA> > changelog.md`
> (some log maybe not correct, you should filter them by yourself) and classify them and paste them to GitHub release note page

### Vote procedure

1. DolphinScheduler community vote: send the vote e-mail to `dev@dolphinscheduler.apache.org`.
   PMC needs to check the rightness of the version according to the document before they vote.
   After at least 72 hours and with at least 3 `+1 and no -1 PMC member` votes, it can come to the next stage of the vote.

2. Announce the vote result: send the result vote e-mail to `dev@dolphinscheduler.apache.org`。

### Vote Templates

#### DolphinScheduler Community Vote Template

Title：

```txt
[VOTE] Release Apache DolphinScheduler <VERSION>
```

Body：

```txt
Hello DolphinScheduler Community,

This is a call for vote to release Apache DolphinScheduler version <VERSION>

Release notes: https://github.com/apache/dolphinscheduler/releases/tag/<VERSION>

The release candidates: https://dist.apache.org/repos/dist/dev/dolphinscheduler/<VERSION>/

Maven 2 staging repository: https://repository.apache.org/content/repositories/<STAGING.REPOSITORY>/org/apache/dolphinscheduler/

Git tag for the release: https://github.com/apache/dolphinscheduler/tree/<VERSION>

Release Commit ID: https://github.com/apache/dolphinscheduler/commit/<SHA-VALUE>

Keys to verify the Release Candidate: https://downloads.apache.org/dolphinscheduler/KEYS

Look at here for how to verify this release candidate: https://dolphinscheduler.apache.org/en-us/docs/latest/user_doc/contribute/release/release.html

The vote will be open for at least 72 hours or until necessary number of votes are reached.

Please vote accordingly:

[ ] +1 approve
[ ] +0 no opinion
[ ] -1 disapprove with the reason

Checklist for reference:

[ ] Download links are valid.
[ ] Checksums and PGP signatures are valid.
[ ] Source code artifacts have correct names matching the current release.
[ ] LICENSE and NOTICE files are correct for each DolphinScheduler repo.
[ ] All files have license headers if necessary.
[ ] No compiled archives bundled in source archive.
```

2. Announce the vote result:

Body：

```txt
The vote to release Apache DolphinScheduler <VERSION> has passed.Here is the vote result,

4 PMC member +1 votes:

xxx
xxx
xxx
xxx

1 community +1 vote:
xxx

Thanks everyone for taking time to check this release and help us.
```

## Finish the Release

### Move source packages, binary packages from the `dev` directory to `release` directory

```shell
svn mv -m "release ${VERSION}" https://dist.apache.org/repos/dist/dev/dolphinscheduler/"${VERSION}" https://dist.apache.org/repos/dist/release/dolphinscheduler/
```

### Update Document

Website should be present before you send the announce mail this section will tell you how to change the website. For example,
the release version is `<VERSION>`, the following updates are required(note it will take effect immediately when the PR is merged):

- Repository **apache/dolphinscheduler-website**:
  - `download/en-us/download.md` and `download/zh-cn/download.md`: add the download of the `<VERSION>` release package
  - `scripts/conf.sh`: Add new release version `<VERSION>` key-value pair to variable `DEV_RELEASE_DOCS_VERSIONS`
- Repository **apache/dolphinscheduler** (dev branch):
  - `docs/configs/site.js`:
    - `docsLatest`: update to `<VERSION>`
    - `docs0`: The `text` of two places of `en-us/zh-cn` needs to be updated to `latest(<VERSION>)`
  - `docs/configs/index.md.jsx`: Add `<VERSION>: docsxyzConfig`
  - `docs/docs/en/history-versions.md` and `docs/docs/zh/history-versions.md`: Add new `<VERSION>` release docs.
  - `.github/ISSUE_TEMPLATE/bug-report.yml`: DolphinScheduler's GitHub [bug-report](https://github.com/apache/dolphinscheduler/blob/dev/.github/ISSUE_TEMPLATE/bug-report.yml)
    issue template have **Version** selection bottom. So after we release DolphinScheduler we should and the new `<VERSION>` to
    bug-report.yml

### Find DolphinScheduler in [apache staging repositories](https://repository.apache.org/#stagingRepositories) and click `Release`

### Send Announcement E-mail Community

You should send announcement E-mail after release process finished. The E-mail should send to `dev@dolphinscheduler.apache.org`
and cc to `announce@apache.org`.

Announcement e-mail template as below：

Title：

```txt
[ANNOUNCE] Release Apache DolphinScheduler <VERSION>
```

Body：

```txt
Hi all,

We are glad to announce the release of Apache DolphinScheduler <VERSION>. Once again I would like to express my thanks to your help.

Dolphin Scheduler is a distributed and easy-to-extend visual workflow scheduler system,
dedicated to solving the complex task dependencies in data processing, making the scheduler system out of the box for data processing.


Download Links: https://dolphinscheduler.apache.org/en-us/download/download.html

Release Notes: https://github.com/apache/dolphinscheduler/releases/tag/<VERSION>

Website: https://dolphinscheduler.apache.org/

DolphinScheduler Resources:
- Issue: https://github.com/apache/dolphinscheduler/issues/
- Mailing list: dev@dolphinscheduler.apache.org
- Documents: https://dolphinscheduler.apache.org/zh-cn/docs/<VERSION>/user_doc/about/introduction.html
```

