Installing Blackfire

Installing and updating Blackfire should be a quick process. This document will guide you through the steps.

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Tell us what you want to do:

I want to Blackfire

which uses

for the language.

The v2 version is the one you want to use. If you have automation based on the previous version, select v1, which is still supported until the Aug, 31th 2021.

If you are upgrading from v1, please read the upgrade guide.

To start using Blackfire, we are going to install the following:

A language extension;
An agent to communicate with Blackfire's servers;
A profiling client (a browser extension or a CLI tool).

Configure the Debian Repository ¶

Blackfire uses a custom Debian repository to distribute its packages; it is compatible with most Debian-based distributions like Ubuntu and Linux-Mint.

wget -q -O - https://packages.blackfire.io/gpg.key | sudo apt-key add -

Add the repository to Debian source list:

echo "deb http://packages.blackfire.io/debian any main" | sudo tee /etc/apt/sources.list.d/blackfire.list

Update the repositories:
```
sudo apt update
```

Install the Packages ¶

Install the blackfire package:
```
sudo apt install blackfire
```

Configure and Run the Agent ¶
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This command asks for some Blackfire server credentials, log in or sign up now to get them:

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Learn more about the agent configuration file.
Restart the agent service:
```
sudo systemctl restart blackfire-agent
```
During the agent installation, a new blackfire-agent service was created to start, stop, and restart it. Whenever you modify the agent configuration, restart it.
If something goes wrong, check out the log file generated by default in /var/log/blackfire/agent.log. Change the log file or the log level in the agent configuration file.

Install the Go Probe

Import the Blackfire module in your code base:
```
import github.com/blackfireio/go-blackfire
```
Update your code to enable profiling in your Go applications.

Check that there are no errors in the logs. To debug problems, change the log level and the log file in the Probe configuration.

Enable Monitoring

You can now enable monitoring for your environments.

Install a Profiling Client ¶
Chrome Extension Installed Chrome Extension Upgrade Available Chrome Extension Not Installed

To profile applications, use the Go SDK.

For on-demand profiling, you need to install a profiling client:

Profile from the command line via the blackfire tool (Web applications, APIs, command line tools, daemons, and more).

Configure it with your personal credentials:
```
blackfire client:config --client-id=CLIENT_ID --client-token=CLIENT_TOKEN
```

Start Profiling ¶

Start profiling via: