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e9ae7c4b89
Introduce a script that configures a local testing environment
with ipa default.conf, krb5.conf, and ca.crt from a server hostname.
The lite server configuration allows easy and convenient testing of
IPA server and client code. It uses an existing 389-DS and KRB5 KDC
server on another machine:
$ contrib/lite-setup.py master.ipa.example
$ source ~/.ipa/activate.sh
(ipaenv) $ kinit username
(ipaenv) $ make lite-server
IPA server UI is available on http://localhost:8888/ipa/
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
119 lines
3.3 KiB
Markdown
119 lines
3.3 KiB
Markdown
# In-tree development debugging and testing
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lite-server and lite-client enable fast development, debugging, and
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performance analysis of server or client code from an in-tree source
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directory. The lite-server runs a local web server that uses a remote
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LDAP and KRB5 server.
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## Prerequisites
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### Remote IPA server
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Lite-server and lite-client require a running IPA server. The server
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should have a similar LDAP schema and IPA version as the in-tree
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sources. Some features may not work if the differences are too great.
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The lite-server only needs a working LDAP server and KRB5 server. For
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KdcProxy or CA-related features the Apache HTTPd and pki-tomcatd service
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must be running, too.
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If the lite-client is configured for remote-server instead of
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lite-server, then the lite-client uses the HTTP API of the remote
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server.
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### Local setup
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1. Configure and build FreeIPA according to ``BUILD.txt``, TL;DR
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```
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$ sudo dnf builddep -b --spec freeipa.spec.in --best --allowerasing --setopt=install_weak_deps=False
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$ ./autogen.sh
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$ make
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```
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2. Install additional dependencies for the lite-server
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```
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sudo dnf install -y python3-werkzeug python3-watchdog
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```
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3. The FQDN of the remote IPA server must be resolvable. In case the
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server does not have a valid DNS entry, it is possible to add the
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hostname and IP address to ``/etc/hosts``.
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4. Create configuration files in ``~/.ipa``. The lite-server requires
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an IPA configuration, CA certificate file, KRB5 configuration,
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Kerberos TGT and a file based credential cache. The script
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``contrib/lite-setup.py`` can create a all necessary files for you
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and sets up ``default.conf``, ``krb5.conf``, ``ca.crt``, and
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even ``ldap.conf``:
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```
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$ contrib/lite-setup.py master.ipa.example
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```
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5. Setup environment variables: the lite-setup script also creates a
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shell source file that activates a virtualenv like environment. The
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source files sets several environment variables for PATH, KRB5, LDAP,
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IPA, and Python. The env allows you to run the lite server, ``ipa``
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client commands, or OpenLDAP commands:
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```
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$ source ~/.ipa/activate.sh
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```
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4. Acquire a TGT
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```
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(ipaenv) $ kinit username
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```
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5. Run the lite-server
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```
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(ipaenv) $ make lite-server
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```
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6. Run ``ipa`` client commands in another shell session. The lite-setup
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scripts provides a wrapper that uses the development sources, too.
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```
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$ source ~/.ipa/activate.sh
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(ipaenv) $ which ipa
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~/.ipa/ipa
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(ipaenv) $ ipa ping
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```
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7. Deactivate the environment
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```
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(ipaenv) $ deactivate_ipaenv
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```
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## Limitations
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The lite-server does not have access to the ra-agent certificate.
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Therefore most CA and KRA (vault) operations are not supported.
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## Tricks and tips
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The lite-server has a functional Web UI at
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http://localhost:8888/ipa/xml. The session is already authenticated
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with the current TGT.
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The lite-setup script has additional options
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* ``--kdcproxy`` configures ``krb5.conf`` for Kerberos over HTTPS
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* ``--debug`` enables IPA and KRB5 debugging
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* ``--remote-server`` lets you run local client commands without a
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local lite-server.
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The ``make lite-server`` command supports arguments like
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``PYTHON=/path/to/custom/interpreter`` or
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``LITESERVER_ARGS='--enable-profiler=-'``.
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By default the dev server supports HTTP only. To switch to HTTPS, you
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can put a PEM file at ~/.ipa/lite.pem. The PEM file must contain a
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server certificate, its unencrypted private key and intermediate chain
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certs (if applicable).
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