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under the License.
Installation
------------
Getting Airflow
'''''''''''''''
Airflow is published as ``apache-airflow`` package in PyPI. Installing it however might be sometimes tricky
because Airflow is a bit of both a library and application. Libraries usually keep their dependencies open and
applications usually pin them, but we should do neither and both at the same time. We decided to keep
our dependencies as open as possible (in ``setup.py``) so users can install different version of libraries
if needed. This means that from time to time plain ``pip install apache-airflow`` will not work or will
produce unusable Airflow installation.
In order to have repeatable installation, however, starting from **Airflow 1.10.10** and updated in
**Airflow 1.10.12** we also keep a set of "known-to-be-working" constraint files in the
``constraints-master`` and ``constraints-1-10`` orphan branches.
Those "known-to-be-working" constraints are per major/minor python version. You can use them as constraint
files when installing Airflow from PyPI. Note that you have to specify correct Airflow version
and python versions in the URL.
**Prerequisites**
On Debian based Linux OS:
.. code-block:: bash
sudo apt-get update
sudo apt-get install build-essential
1. Installing just airflow
.. code-block:: bash
AIRFLOW_VERSION=1.10.12
PYTHON_VERSION="$(python --version | cut -d " " -f 2 | cut -d "." -f 1-2)"
# For example: 3.6
CONSTRAINT_URL="https://raw.githubusercontent.com/apache/airflow/constraints-${AIRFLOW_VERSION}/constraints-${PYTHON_VERSION}.txt"
# For example: https://raw.githubusercontent.com/apache/airflow/constraints-1.10.12/constraints-3.6.txt
pip install "apache-airflow==${AIRFLOW_VERSION}" --constraint "${CONSTRAINT_URL}"
2. Installing with extras (for example postgres, google)
.. code-block:: bash
AIRFLOW_VERSION=1.10.12
PYTHON_VERSION="$(python --version | cut -d " " -f 2 | cut -d "." -f 1-2)"
CONSTRAINT_URL="https://raw.githubusercontent.com/apache/airflow/constraints-${AIRFLOW_VERSION}/constraints-${PYTHON_VERSION}.txt"
pip install "apache-airflow[postgres,google]==${AIRFLOW_VERSION}" --constraint "${CONSTRAINT_URL}"
You need certain system level requirements in order to install Airflow. Those are requirements that are known
to be needed for Linux system (Tested on Ubuntu Buster LTS) :
.. code-block:: bash
sudo apt-get install -y --no-install-recommends \
freetds-bin \
krb5-user \
ldap-utils \
libffi6 \
libsasl2-2 \
libsasl2-modules \
libssl1.1 \
locales \
lsb-release \
sasl2-bin \
sqlite3 \
unixodbc
You also need database client packages (Postgres or MySQL) if you want to use those databases.
If the ``airflow`` command is not getting recognized (can happen on Windows when using WSL), then
ensure that ``~/.local/bin`` is in your ``PATH`` environment variable, and add it in if necessary:
.. code-block:: bash
PATH=$PATH:~/.local/bin
Extra Packages
''''''''''''''
The ``apache-airflow`` PyPI basic package only installs what's needed to get started.
Subpackages can be installed depending on what will be useful in your
environment. For instance, if you don't need connectivity with Postgres,
you won't have to go through the trouble of installing the ``postgres-devel``
yum package, or whatever equivalent applies on the distribution you are using.
Behind the scenes, Airflow does conditional imports of operators that require
these extra dependencies.
Here's the list of the subpackages and what they enable:
**Fundamentals:**
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| subpackage | install command | enables |
+=====================+=====================================================+======================================================================+
| all | ``pip install 'apache-airflow[all]'`` | All Airflow features known to man |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| all_dbs | ``pip install 'apache-airflow[all_dbs]'`` | All databases integrations |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| devel | ``pip install 'apache-airflow[devel]'`` | Minimum dev tools requirements |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| devel_all | ``pip install 'apache-airflow[devel_all]'`` | All dev tools requirements |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| devel_azure | ``pip install 'apache-airflow[devel_azure]'`` | Azure development requirements |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| devel_ci | ``pip install 'apache-airflow[devel_ci]'`` | Development requirements used in CI |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| devel_hadoop | ``pip install 'apache-airflow[devel_hadoop]'`` | Airflow + dependencies on the Hadoop stack |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| doc | ``pip install 'apache-airflow[doc]'`` | Packages needed to build docs |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| password | ``pip install 'apache-airflow[password]'`` | Password authentication for users |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
**Apache Software:**
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| subpackage | install command | enables |
+=====================+=====================================================+======================================================================+
| atlas | ``pip install 'apache-airflow[apache.atlas]'`` | Apache Atlas to use Data Lineage feature |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| cassandra | ``pip install 'apache-airflow[apache.cassandra]'`` | Cassandra related operators & hooks |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| druid | ``pip install 'apache-airflow[apache.druid]'`` | Druid related operators & hooks |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| hdfs | ``pip install 'apache-airflow[apache.hdfs]'`` | HDFS hooks and operators |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| hive | ``pip install 'apache-airflow[apache.hive]'`` | All Hive related operators |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| presto | ``pip install 'apache-airflow[apache.presto]'`` | All Presto related operators & hooks |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| webhdfs | ``pip install 'apache-airflow[webhdfs]'`` | HDFS hooks and operators |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
**Services:**
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| subpackage | install command | enables |
+=============================+===============================================================+======================================================================+
| aws | ``pip install 'apache-airflow[amazon]'`` | Amazon Web Services |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| azure | ``pip install 'apache-airflow[microsoft.azure]'`` | Microsoft Azure |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| azure_blob_storage | ``pip install 'apache-airflow[azure_blob_storage]'`` | Microsoft Azure (blob storage) |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| azure_cosmos | ``pip install 'apache-airflow[azure_cosmos]'`` | Microsoft Azure (cosmos) |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| azure_container_instances | ``pip install 'apache-airflow[azure_container_instances]'`` | Microsoft Azure (container instances) |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| azure_data_lake | ``pip install 'apache-airflow[azure_data_lake]'`` | Microsoft Azure (data lake) |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| azure_secrets | ``pip install 'apache-airflow[azure_secrets]'`` | Microsoft Azure (secrets) |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| azure | ``pip install 'apache-airflow[microsoft.azure]'`` | Microsoft Azure |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| cloudant | ``pip install 'apache-airflow[cloudant]'`` | Cloudant hook |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| databricks | ``pip install 'apache-airflow[databricks]'`` | Databricks hooks and operators |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| datadog | ``pip install 'apache-airflow[datadog]'`` | Datadog hooks and sensors |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| gcp | ``pip install 'apache-airflow[gcp]'`` | Google Cloud |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| github_enterprise | ``pip install 'apache-airflow[github_enterprise]'`` | GitHub Enterprise auth backend |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| google | ``pip install 'apache-airflow[google]'`` | Google Cloud (same as gcp) |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| google_auth | ``pip install 'apache-airflow[google_auth]'`` | Google auth backend |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| hashicorp | ``pip install 'apache-airflow[hashicorp]'`` | Hashicorp Services (Vault) |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| jira | ``pip install 'apache-airflow[jira]'`` | Jira hooks and operators |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| qds | ``pip install 'apache-airflow[qds]'`` | Enable QDS (Qubole Data Service) support |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| salesforce | ``pip install 'apache-airflow[salesforce]'`` | Salesforce hook |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| sendgrid | ``pip install 'apache-airflow[sendgrid]'`` | Send email using sendgrid |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| segment | ``pip install 'apache-airflow[segment]'`` | Segment hooks and sensors |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| sentry | ``pip install 'apache-airflow[sentry]'`` | |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| slack | ``pip install 'apache-airflow[slack]'`` | :class:`airflow.providers.slack.operators.slack.SlackAPIOperator` |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| snowflake | ``pip install 'apache-airflow[snowflake]'`` | Snowflake hooks and operators |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
| vertica | ``pip install 'apache-airflow[vertica]'`` | Vertica hook support as an Airflow backend |
+-----------------------------+---------------------------------------------------------------+----------------------------------------------------------------------+
**Software:**
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| subpackage | install command | enables |
+=====================+=====================================================+====================================================================================+
| async | ``pip install 'apache-airflow[async]'`` | Async worker classes for Gunicorn |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| celery | ``pip install 'apache-airflow[celery]'`` | CeleryExecutor |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| dask | ``pip install 'apache-airflow[dask]'`` | DaskExecutor |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| docker | ``pip install 'apache-airflow[docker]'`` | Docker hooks and operators |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| elasticsearch | ``pip install 'apache-airflow[elasticsearch]'`` | Elasticsearch hooks and Log Handler |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| kubernetes | ``pip install 'apache-airflow[cncf.kubernetes]'`` | Kubernetes Executor and operator |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| mongo | ``pip install 'apache-airflow[mongo]'`` | Mongo hooks and operators |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| mssql (deprecated) | ``pip install 'apache-airflow[microsoft.mssql]'`` | Microsoft SQL Server operators and hook, |
| | | support as an Airflow backend. Uses pymssql. |
| | | Will be replaced by subpackage ``odbc``. |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| mysql | ``pip install 'apache-airflow[mysql]'`` | MySQL operators and hook, support as an Airflow |
| | | backend. The version of MySQL server has to be |
| | | 5.6.4+. The exact version upper bound depends |
| | | on version of ``mysqlclient`` package. For |
| | | example, ``mysqlclient`` 1.3.12 can only be |
| | | used with MySQL server 5.6.4 through 5.7. |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| oracle | ``pip install 'apache-airflow[oracle]'`` | Oracle hooks and operators |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| pinot | ``pip install 'apache-airflow[pinot]'`` | Pinot DB hook |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| postgres | ``pip install 'apache-airflow[postgres]'`` | PostgreSQL operators and hook, support as an |
| | | Airflow backend |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| rabbitmq | ``pip install 'apache-airflow[rabbitmq]'`` | RabbitMQ support as a Celery backend |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| redis | ``pip install 'apache-airflow[redis]'`` | Redis hooks and sensors |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| samba | ``pip install 'apache-airflow[samba]'`` | :class:`airflow.providers.apache.hive.transfers.hive_to_samba.HiveToSambaOperator` |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| statsd | ``pip install 'apache-airflow[statsd]'`` | Needed by StatsD metrics |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
| virtualenv | ``pip install 'apache-airflow[virtualenv]'`` | |
+---------------------+-----------------------------------------------------+------------------------------------------------------------------------------------+
**Other:**
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| subpackage | install command | enables |
+=====================+=====================================================+======================================================================+
| cgroups | ``pip install 'apache-airflow[cgroups]'`` | Needed To use CgroupTaskRunner |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| crypto | ``pip install 'apache-airflow[crypto]'`` | Cryptography libraries |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| grpc | ``pip install 'apache-airflow[grpc]'`` | Grpc hooks and operators |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| jdbc | ``pip install 'apache-airflow[jdbc]'`` | JDBC hooks and operators |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| kerberos | ``pip install 'apache-airflow[kerberos]'`` | Kerberos integration for Kerberized Hadoop |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| ldap | ``pip install 'apache-airflow[ldap]'`` | LDAP authentication for users |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| papermill | ``pip install 'apache-airflow[papermill]'`` | Papermill hooks and operators |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| ssh | ``pip install 'apache-airflow[ssh]'`` | SSH hooks and Operator |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
| winrm | ``pip install 'apache-airflow[microsoft.winrm]'`` | WinRM hooks and operators |
+---------------------+-----------------------------------------------------+----------------------------------------------------------------------+
Initializing Airflow Database
'''''''''''''''''''''''''''''
Airflow requires a database to be initialized before you can run tasks. If
you're just experimenting and learning Airflow, you can stick with the
default SQLite option. If you don't want to use SQLite, then take a look at
:doc:`howto/initialize-database` to setup a different database.
After configuration, you'll need to initialize the database before you can
run tasks:
.. code-block:: bash
airflow db init