github.com/niedbalski/juju@v0.0.0-20190215020005-8ff100488e47/feature/flags.go (about)

     1  // Copyright 2015 Canonical Ltd.
     2  // Licensed under the AGPLv3, see LICENCE file for details.
     3  
     4  // Package feature package defines the names of the current feature flags.
     5  package feature
     6  
     7  // TODO (anastasiamac 2015-03-02)
     8  // Features that have commands that can be blocked,
     9  // command list for "juju block" and "juju unblock"
    10  // needs to be maintained until we can dynamically discover
    11  // these commands.
    12  
    13  // LogErrorStack is a developer feature flag to have the LoggedErrorStack
    14  // function in the utils package write out the error stack as defined by the
    15  // errors package to the logger.  The ability to log the error stack is very
    16  // useful in those error cases where you really don't expect there to be a
    17  // failure.  This means that the developers with this flag set will see the
    18  // stack trace in the log output, but normal deployments never will.
    19  const LogErrorStack = "log-error-stack"
    20  
    21  // LegacyUpstart is used to indicate that the version-based init system
    22  // discovery code (service.VersionInitSystem) should return upstart
    23  // instead of systemd for vivid and newer.
    24  const LegacyUpstart = "legacy-upstart"
    25  
    26  // PostNetCLIMVP is used to indicate that additional networking
    27  // commands will be available in addition to the networking MVP ones
    28  // (space list|create, subnet list|add).
    29  const PostNetCLIMVP = "post-net-cli-mvp"
    30  
    31  // ImageMetadata allows custom image metadata to be recorded in state.
    32  const ImageMetadata = "image-metadata"
    33  
    34  // DeveloperMode allows access to developer specific commands and behaviour.
    35  const DeveloperMode = "developer-mode"
    36  
    37  // StrictMigration will cause migration to error if there are unexported
    38  // values for annotations, status, status history, or settings.
    39  const StrictMigration = "strict-migration"
    40  
    41  // OldPresence indicates that the old database presence implementation
    42  // should be used by the API server to determine agent presence.
    43  // This value is only checked using the controller config "features" attrubite.
    44  const OldPresence = "old-presence"
    45  
    46  // LegacyLeases will switch all lease management to be handled by the
    47  // Mongo-based lease store, rather than by the Raft FSM.
    48  const LegacyLeases = "legacy-leases"
    49  
    50  // Generations will allow for model generation functionality to be used.
    51  const Generations = "generations"
    52  
    53  // MongoDbSnap tells Juju to install MongoDB as a snap, rather than installing
    54  // it from APT.
    55  const MongoDbSnap = "mongodb-snap"