cc-backend/configs

Intro

cc-backend can be used without a configuration file. In this case the default options documented below are used. To overwrite the defaults specify a json config file location using the command line option --config <filepath>. All security relevant configuration. e.g., keys and passwords, are set using environment variables. It is supported to specify these by means of an .env file located in the project root.

Configuration Options

• addr: Type string. Address where the http (or https) server will listen on (for example: 'localhost:80'). Default :8080.
• user: Type string. Drop root permissions once .env was read and the port was taken. Only applicable if using privileged port.
• group: Type string. Drop root permissions once .env was read and the port was taken. Only applicable if using privileged port.
• disable-authentication: Type bool. Disable authentication (for everything: API, Web-UI, ...). Default false.
• static-files: Type string. Folder where static assets can be found, those will be served directly. Default ./frontend/public.
• db-driver: Type string. 'sqlite3' or 'mysql' (mysql will work for mariadb as well). Default sqlite3.
• db: Type string. For sqlite3 a filename, for mysql a DSN in this format: https://github.com/go-sql-driver/mysql#dsn-data-source-name (Without query parameters!). Default: ./var/job.db.
• job-archive: Type string. Path to the job-archive. Default: ./var/job-archive.
• disable-archive: Type bool. Keep all metric data in the metric data repositories, do not write to the job-archive. Default false.
• "session-max-age: Type string. Specifies for how long a session shall be valid as a string parsable by time.ParseDuration(). If 0 or empty, the session/token does not expire! Default 168h.
• "jwt-max-age: Type string. Specifies for how long a JWT token shall be valid as a string parsable by time.ParseDuration(). If 0 or empty, the session/token does not expire! Default 0.
• https-cert-file and https-key-file: Type string. If both those options are not empty, use HTTPS using those certificates.
• redirect-http-to: Type string. If not the empty string and addr does not end in ":80", redirect every request incoming at port 80 to that url.
• machine-state-dir: Type string. Where to store MachineState files. TODO: Explain in more detail!
• "stop-jobs-exceeding-walltime: Type int. If not zero, automatically mark jobs as stopped running X seconds longer than their walltime. Only applies if walltime is set for job. Default 0;
• ldap: Type object. For LDAP Authentication and user synchronisation. Default nil.
  • url: Type string. URL of LDAP directory server.
  • user_base: Type string. Base DN of user tree root.
  • search_dn: Type string. DN for authenticating LDAP admin account with fgeneral read rights.
  • user_bind: Type string. Expression used to authenticate users via LDAP bind. Must contain uid={username}.
  • user_filter: Type string. Filter to extract users for syncing.
  • sync_interval: Type string. Interval used for syncing local user table with LDAP directory. Parsed using time.ParseDuration.
  • sync_del_old_users: Type bool. Delete obsolete users in database.
• ui-defaults: Type object. Default configuration for ui views. If overwriten, all options must be provided! Most options can be overwritten by the user via the web interface.
  • analysis_view_histogramMetrics: Type string array. X. Default ["flops_any", "mem_bw", "mem_used"].
  • analysis_view_scatterPlotMetrics: Type string array. X. Default [["flops_any", "mem_bw"], ["flops_any", "cpu_load"], ["cpu_load", "mem_bw"]].
  • job_view_nodestats_selectedMetrics: Type string array. X. Default ["flops_any", "mem_bw", "mem_used"].
  • job_view_polarPlotMetrics: Type string array. X. Default ["flops_any", "mem_bw", "mem_used", "net_bw", "file_bw"].
  • job_view_selectedMetrics: Type string array. X. Default ["flops_any", "mem_bw", "mem_used"].
  • plot_general_colorBackground: Type bool. X. Default true.
  • plot_general_colorscheme: Type string array. X. Default "#00bfff", "#0000ff", "#ff00ff", "#ff0000", "#ff8000", "#ffff00", "#80ff00".
  • plot_general_lineWidth: Type int. X. Default 3.
  • plot_list_hideShortRunningJobs: Type int. X. Default 300.
  • plot_list_jobsPerPage: Type int. X. Default 50.
  • plot_list_selectedMetrics: Type string array. X. Default "cpu_load", "ipc", "mem_used", "flops_any", "mem_bw".
  • plot_view_plotsPerRow: Type int. X. Default 3.
  • plot_view_showPolarplot: Type bool. X. Default true.
  • plot_view_showRoofline: Type bool. X. Default true.
  • plot_view_showStatTable: Type bool. X. Default true.
  • system_view_selectedMetric: Type string. X. Default xx.

Environment Variables

An example env file is found in this directory. Copy it to .env in the project root and adapt it for your needs.

• JWT_PUBLIC_KEY and JWT_PRIVATE_KEY: Base64 encoded Ed25519 keys used for JSON Web Token (JWT) authentication . TODO: Details! You can generate your own keypair using go run utils/gen-keypair.go
• SESSION_KEY: Some random bytes used as secret for cookie-based sessions.
• LDAP_ADMIN_PASSWORD: The LDAP admin user password (optional).