707f272eb8
Added custom Exception classes and raised them in get_moltenirond_pid. Added log_error to log to stderr and a logfile called /tmp/MoltenIron-error-logfile. Change-Id: I2855cf832c2a1a8f5ef9df34cf96706eb5406276 |
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molteniron | ||
tests | ||
utils | ||
README.md | ||
conf.yaml | ||
createDB.py | ||
requirements.txt | ||
setup.py | ||
tox.ini |
README.md
MoltenIron overview
MoltenIron maintains a pool of bare metal nodes.
Starting
Before starting the server for the first time, the createDB.py script must be run.
To start the server:
moltenirond-helper start
To stop the server:
moltenirond-helper stop
MoltenIron client
Use the molteniron client (molteniron) to communicate with the server. For usage information type:
molteniron -h
For usage of a specific command use:
molteniron [command] -h
MoltenIron commands
command | description |
---|---|
add | Add a node |
allocate | Allocate a node |
release | Release a node |
get_field | Get a specific field in a node |
set_field | Set a specific field with a value in a node |
status | Return the status of every node |
delete_db | Delete every database entry |
Configuration of MoltenIron
Configuration of MoltenIron is specified in the file conf.yaml.
"B)" means that this configuration option is required for both the client and the server. "C)" means that it is required only for the client. "S)" means it is only required for the server.
usage | key | description |
---|---|---|
B) | mi_port | the port that the server uses to respond to commands. |
C) | serverIP | The IP address of the server. This is only used by |
clients. | ||
S) | maxTime | The maximum amount of time, in seconds, that a node |
is allowed to be allocated to a particular BM node. | ||
S) | logdir | The path to the directory where the logs should be |
stored. | ||
S) | maxLogDays | The amount of time, in days, to keep old logs. |
S) | sqlUser | The username to use for the MI server. This user |
will automatically be generated when createDB.py is run. | ||
S) | sqlPass | The password of sqlUser |
Running testcases
The suite of testcases is checked by tox. But, before you can run tox, you need to change the local yaml configuration file to point to the log directory.
(LOG=$(pwd)/testenv/log; sed -i -r -e 's,^(logdir: )(.*)$,\1'${LOG}',' conf.yaml; rm -rf testenv/; tox -e testenv)
Running inside a Continuous Integration environment
During the creation of a job, add the following snippet of bash code:
# Setup MoltenIron and all necessary prerequisites.
# And then call the MI script to allocate a node.
(
REPO_DIR=/opt/stack/new/third-party-ci-tools
MI_CONF_DIR=/usr/local/etc/molteniron/
MI_IP=10.1.2.3 # @TODO - Replace with your IP addr here!
# Grab molteniron and install it
git clone https://git.openstack.org/openstack/third-party-ci-tools ${REPO_DIR} || exit 1
cd ${REPO_DIR}/nodepool/molteniron
# @BUG Install prerequisite before running pip to install the requisites
hash mysql_config || sudo apt install -y libmysqlclient-dev
# Install the requisites for this package
sudo pip install --upgrade --force-reinstall --requirement requirements.txt
# Run the python package installation program
sudo python setup.py install
if [ -n "${MI_IP}" ]
then
# Set the molteniron server IP in the conf file
sudo sed -i "s/127.0.0.1/${MI_IP}/g" ${MI_CONF_DIR}/conf.yaml
fi
export dsvm_uuid
# NOTE: dsvm_uuid used in the following script, hence the -E
sudo -E ${REPO_DIR}/nodepool/molteniron/utils/test_hook_configure_mi.sh
) || exit $?
and change the MI_IP environment variable to be your MoltenIron server!
During the destruction of a job, add the following snippet of bash code:
DSVM_UUID="$(</etc/nodepool/uuid)"
echo "Cleaning up resources associated with node: ${DSVM_UUID}"
molteniron release ${DSVM_UUID}