12/28/2021

Install Git On Docker

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The rootless image use Gitea internal ssh to provide git protocol and doesn’t support openssh. This reference setup guides users through the setup based on docker-compose, but the installation of docker-compose is out of scope of this documentation. To install docker-compose itself, follow the official install instructions. May 18, 2016 In summary, use Docker ADD COPY for production and shared volumes for development, while avoiding the use of Git within containers for security reasons. If you need more assistance, don't forget to refer to our help pages and community site. Get the 3 files over to the host server where Docker will be installed. Install Docker (change the path to where you copied the files, and the package names appropriately): sudo yum install /path/to/docker-ce-selinux-package.rpm sudo yum install /path/to/docker-ce-package.rpm 4. Install GitLab Runner on Windows. To install and run GitLab Runner on Windows you need: Git, which can be installed from the official site; A password for your user account, if you want to run it under your user account rather than the Built-in System Account.

Information

See the Docker Setup section before installing Mauro using Docker.

Git repository¶

Depending on the operating system of the server you are running on, you may first need to install git to checkout the Mauro application. You can read more about installing git on different operating systems here: Getting Started - Installing Git

The Mauro Docker configuration repository can be found here: https://github.com/MauroDataMapper/mdm-docker. Where you clone it is up to you, but on a *nix system we recommend cloning into /opt/ (for optional software packages)

Different branches provide different configurations. We recommend checking out the main branch which will provide the latest releases of back-end and front-end. Alternatively, you can check out a specific tag to install a specific front-end / back-end combination. Tagged releases of Docker take the form Ba.b.c_Fx.y.z where a.b.c is the tagged version of the back-end and x.y.z is the tagged version of the front-end.

Information

If you're running on an internal server with SSH access forbidden by a firewall, you can use the following link to access the repository via HTTPS: SSH over HTTPS document.

Overview¶

The Docker Compose configuration defines two interacting containers:

  • Postgres 12 [postgres] - Postgres Database
  • Mauro Data Mapper [maurodatamapper] - Mauro Data Mapper

The first of these is a standard Postgres container with an external volume for persistent storage. The second builds on the standard Apache Tomcat container, which hosts built versions of the Mauro application. The Postgres container must be running whenever the Mauro application starts. The Mauro container persists logs and Lucene indexes to shared folders which can be found in the docker repository folder.

Default username / password¶

The docker installation is empty on initialisation - it comes with one pre-configured user: with the username [email protected] and thepassword password.

Warning

We strongly recommend changing this password on first login, and then setting up personal user accounts for individual users.

Building¶

Once cloned then running the standard docker-compose build command will build the images necessary to run the services.

Additional Backend Plugins¶

Additional plugins can be found at the Mauro Data Mapper Plugins organisation page. A complete list withversions can also be found in the installation documentation.Please note that while we will do our best to keep this page up-to-date, there may be circumstances where it is behind. Therefore, we recommend usingour official GitHub Plugins organisation to find the latest releases and all available plugins.

Each of these can be added as runtimeOnly dependencies by adding them to the ADDITIONAL_PLUGINS build argument for the mauro-data-mapperservice build.

These dependencies should be provided in a semi-colon separated list in the gradle style, they will be split and each will be added as a runtimeOnlydependency.

Example:

This will add the Excel plugin to the dependencies.gradle file:

Dynamic Versions¶

You can use dynamic versioning to add dependencies, however this comes with a riskthat it pulls a version which does not comply with your expected version of mdm-application-build/mdm-core ,which may cause conflicts with otherplugins. Therefore, we do not advise this approach.

Example

This will add the latest minor version of the Excel plugin.

Theme¶

Mauro comes with a default user interface theme - with the standard blue branding, and default text on the home page. This can be overridden in the docker-compose.yml file, with instructions provided in the Branding guide. The default theme is called default and can be set with:

Running multiple instances¶

If running multiple docker-compose instances then they will all make use of the same initial images, therefore you only need to run the ./make script once per server.

SSH firewalled servers¶

Some servers have the 22 SSH port firewalled for external connections.If this is the case you can change the base_images/sdk_base/ssh/config file:

  • Comment out the Hostname field that's currently active
  • Uncomment both commented out Hostname and Port fields, this will allow git to work using the 443 port which will not be blocked

Run environment¶

By adding variables to the <service>.environment section of the docker-compose.yml file, you can pass them into the container as environment variables. These will overrideany existing configuration variables which are used by default. Any defaults and normally used environment variables can be found in the relevant service's Dockerfile atthe ENV command.

postgres service¶

  • POSTGRES_PASSWORD

    This sets the postgres user password for the service. As per the documentation at Postgres Docker Hub, it must be set for a docker postgres container. We have set a default but you can override if desired. If you do override it, you will also need to change the PGPASSWORD environment variable in the mauro-data-mapper section.

  • DATABASE_USERNAME

    This is the username which will be created inside the Postgres instance to own the database which the MDM service will use. The username is also used by the MDM service to connect to the postgres instance, therefore if you change this you must** also supply it in the environment args for the MDM service.

  • DATABASE_PASSWORD

This is the password set for the DATABASE_USERNAME. It is the password used by the MDM service to connect to this postgres container.

mauro-data-mapper service¶

There are a large amount of variables which either need to be set or can be overridden depending on what plugins have been installed and what featuresyou want. Therefore, you can find all the information on configuring MDM here.

There are 2 environment variables which are not used directly by MDM and these are both optional to be overridden in the compose file.

  • PGPASSWORD

This is the postgres user's password for the postgres server. This is an environment variable set to allow the MDM service to wait till the postgres service has completely finished starting up. It is only used to confirm the Postgres server is running and databases exist. After this it is not used again.

Note

If you change POSTGRES_PASSWORD you must change this to match. This can only** be overridden in the docker-compose.yml file.

  • CATALINA_OPTS

Java Opts to be passed to Tomcat.

Note

This can only be overridden in the docker-compose.yml file.

Environment Notes¶

Database¶

The system is designed to use the postgres service provided in the docker-compose file, therefore there should be no need to alter any of thesesettings. Only make alterations if running postgres as a separate service outside of docker-compose.

Email¶

The standard email properties will allow emails to be sent to a specific SMTP server.

Docker Reference¶

Running¶

Before running please read the parameters section first.

With docker and docker-compose installed, run the following:

If you run everything in the background use Kitematic to see the individual container logs.You can do this if running in the foreground and it is easier as it splits each of the containers up.

If only starting a service when you stop, the service docker will not stop the dependencies that were started to allow the named service to start.

The default compose file will pull the correct version images from Bintray, or a locally defined docker repository.

For more information about administration of your running Docker instance, please see the Administration guide

Create your own open-source GitHub alternative Gitea by installing on a Docker container and accessing it outside using the internet or locally.

What is Gitea?

Gitea is version management software, it is a fork of Gogsa resource-saving github.com clone. With any of these two systems, you can build your very own GitHub on your own servers. The range of functions is comparable to Github, Gitlab, Bitbucket, and some other providers. Over the past few years, Git has practically established itself as the “standard” in the world of software development. In addition to Git, there are other systems such as SVN (Subversion), CVS, or Mercurial.

It offers a similar Github interface and in addition to source code management, Gitea comes with other functions such as creating tickets or wikis.

We can even host Gitea locally and as it requires only low resources and computing power; the application can therefore also be made available on a Raspberry Pi.

Here we learn how to install Giteaon Docker container to easily access its Graphical user interface from anywhere and to start hosting source code of projects.

Steps to set up open-source GitHub alternative Gitea on docker container machine…

Contents

Install Docker Machine

The first thing you should have on your respective system is the availability of the Docker Community or enterprise version. If you have that, then move to the next step otherwise, use the given links to first install it.

Download MySQL & Gitea Docker Image

Most of the online guides will instruct to use docker-compose to instantly start with Gitea. However, thinking about beginners we go with the standard way to pull images using the docker command and then for the database.

Create Gitea Container

Let’s create and run a Gitea Docker container using a single command.

Explanation

In the above command:

--name is to define the name of the container, here we have given it Gitea

Install Git Server On Docker

Syntax-p host-port:conainer-port
-p 3000:3000 : We are Mapping docker 3000 port with host 3000 port
-p 22:22 : mapping SSH port of Docker with the host. In case, host 22 port is not free you can use any other.

-v /data:/data – Creating a folder to store Gitea data.

-d gitea/gitea:1: -d means run service in the background where gitea/gitea:1 is the Image name we have pulled for it.

Create a container for MariaDB Database

You can use MySQL, however, here we are using MariaDB which is a fork of it.

To make sure our MySQL database has a backup file, we will map its default data folder with one created on the host. This will ensure even after removing the container our database content wouldn’t get completely wiped out, in case we want to use it in the future.

Note: Change the password in the below command before running with what you want to set for your root MySQL user.

Create a Database for Gitea on Docker

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Connect to the MariaDB container and create Database for the Gitea platform-

Type the following and enter the password you have set for your MariaDB root user

Use the below commands one by one to create a database. Change the bold text as per your choice.

Access Web Interface

On your localhost or remote PC, enter the IP address of the host where you have installed the docker along with port number 3000.

However, you may need to open the port in the host firewall, for that run

For Ubuntu host sudo ufw allow 3000

For CentOS host-sudo firewall-cmd --zone=public --add-port=300/tcp --permanent

To find host IP address type-

Install git on docker

Also, note down the IP address of MariaDB docker container, using this command-

Syntax– docker inspect container-name grep IPAddress

1. Access Server

Now, on your browser enter the IP address of the host along with 3000 port number like this -example: htttp://192.168.189.172:3000

You will have the Gitea GUI web Interface, click on the Sign-in button.

2. Select DatabaseType – MySQL

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3. Replace localhost:3306 with your MariaDB docker IP address you find above. After that enter the Database details, we have created above for Gitea such as root password and Database name.

Note: If you don’t change the IP address you will get an error: The database settings are invalid: dial tcp 127.0.0.1:3306: connect: connection refused

4. Change Gitea running on Docker Base URL

By default, the base URL will use the localhost, however, as we are accessing it outside the docker using host IP-address or domain name, thus replace localhost with your host IP-address here as well.

5. Go to the end and set the Administrator account Setting, set username and password.

6. Finally, hit the Install button.

7. And you will have the GitHub alternative and its similar interface Gitea on your own local or cloud hosting server.

Install Git On Docker

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