红帽全球峰会5.3. Configuring Cluster Loader
The tool creates multiple namespaces (projects), which contain multiple templates or pods.
5.3.1. Example Cluster Loader configuration file
Cluster Loader’s configuration file is a basic YAML file:
provider: local 1 ClusterLoader: cleanup: true projects: - num: 1 basename: clusterloader-cakephp-mysql tuning: default ifexists: reuse templates: - num: 1 file: cakephp-mysql.json - num: 1 basename: clusterloader-dancer-mysql tuning: default ifexists: reuse templates: - num: 1 file: dancer-mysql.json - num: 1 basename: clusterloader-django-postgresql tuning: default ifexists: reuse templates: - num: 1 file: django-postgresql.json - num: 1 basename: clusterloader-nodejs-mongodb tuning: default ifexists: reuse templates: - num: 1 file: quickstarts/nodejs-mongodb.json - num: 1 basename: clusterloader-rails-postgresql tuning: default templates: - num: 1 file: rails-postgresql.json tuningsets: 2 - name: default pods: stepping: 3 stepsize: 5 pause: 0 s rate_limit: 4 delay: 0 ms
- 1
- Optional setting for end-to-end tests. Set to
localto avoid extra log messages. - 2
- The tuning sets allow rate limiting and stepping, the ability to create several batches of pods while pausing in between sets. Cluster Loader monitors completion of the previous step before continuing.
- 3
- Stepping will pause for
Mseconds after eachNobjects are created. - 4
- Rate limiting will wait
Mmilliseconds between the creation of objects.
This example assumes that references to any external template files or pod spec files are also mounted into the container.
If you are running Cluster Loader on Microsoft Azure, then you must set the AZURE_AUTH_LOCATION variable to a file that contains the output of terraform.azure.auto.tfvars.json, which is present in the installer directory.
5.3.2. Configuration fields
| Field | Description |
|---|---|
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|
Set to |
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|
A sub-object with one or many definition(s). Under |
|
|
A sub-object with one definition per configuration. |
|
| An optional sub-object with one definition per configuration. Adds synchronization possibilities during object creation. |
| Field | Description |
|---|---|
|
| An integer. One definition of the count of how many projects to create. |
|
|
A string. One definition of the base name for the project. The count of identical namespaces will be appended to |
|
| A string. One definition of what tuning set you want to apply to the objects, which you deploy inside this namespace. |
|
|
A string containing either |
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| A list of key-value pairs. The key is the config map name and the value is a path to a file from which you create the config map. |
|
| A list of key-value pairs. The key is the secret name and the value is a path to a file from which you create the secret. |
|
| A sub-object with one or many definition(s) of pods to deploy. |
|
| A sub-object with one or many definition(s) of templates to deploy. |
| Field | Description |
|---|---|
|
| An integer. The number of pods or templates to deploy. |
|
| A string. The docker image URL to a repository where it can be pulled. |
|
| A string. One definition of the base name for the template (or pod) that you want to create. |
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| A string. The path to a local file, which is either a pod spec or template to be created. |
|
|
Key-value pairs. Under |
| Field | Description |
|---|---|
|
| A string. The name of the tuning set which will match the name specified when defining a tuning in a project. |
|
|
A sub-object identifying the |
|
|
A sub-object identifying the |
| Field | Description |
|---|---|
|
| A sub-object. A stepping configuration used if you want to create an object in a step creation pattern. |
|
| A sub-object. A rate-limiting tuning set configuration to limit the object creation rate. |
| Field | Description |
|---|---|
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| An integer. How many objects to create before pausing object creation. |
|
|
An integer. How many seconds to pause after creating the number of objects defined in |
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| An integer. How many seconds to wait before failure if the object creation is not successful. |
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| An integer. How many milliseconds (ms) to wait between creation requests. |
| Field | Description |
|---|---|
|
|
A sub-object with |
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A boolean. Wait for pods with labels matching |
|
|
A boolean. Wait for pods with labels matching |
|
|
A list of selectors to match pods in |
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|
A string. The synchronization timeout period to wait for pods in |
