github.com/m3db/m3@v1.5.0/src/m3em/agent/types.go (about)

     1  // Copyright (c) 2017 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package agent
    22  
    23  import (
    24  	"io"
    25  	"os"
    26  	"time"
    27  
    28  	"github.com/m3db/m3/src/m3em/generated/proto/m3em"
    29  	"github.com/m3db/m3/src/m3em/os/exec"
    30  	xclock "github.com/m3db/m3/src/x/clock"
    31  	"github.com/m3db/m3/src/x/instrument"
    32  )
    33  
    34  // Agent is the remote executor of m3em operations
    35  type Agent interface {
    36  	io.Closer
    37  	m3em.OperatorServer
    38  
    39  	// Running returns a flag indicating if the test process supervised
    40  	// by the Agent is running.
    41  	Running() bool
    42  }
    43  
    44  // Options represent the knobs for a m3em agent
    45  type Options interface {
    46  	// Validate checks if the options set are valid
    47  	Validate() error
    48  
    49  	// SetInstrumentOptions sets the instrument options
    50  	SetInstrumentOptions(instrument.Options) Options
    51  
    52  	// InstrumentOptions returns the instrument options
    53  	InstrumentOptions() instrument.Options
    54  
    55  	// SetWorkingDirectory sets the agent's WorkingDirectory
    56  	SetWorkingDirectory(string) Options
    57  
    58  	// WorkingDirectory returns the agent's WorkingDirectory
    59  	WorkingDirectory() string
    60  
    61  	// SetExecGenFn sets the ExecGenFn
    62  	SetExecGenFn(fn ExecGenFn) Options
    63  
    64  	// ExecGenFn returns the ExecGenFn
    65  	ExecGenFn() ExecGenFn
    66  
    67  	// SetInitHostResourcesFn sets the InitHostResourcesFn
    68  	SetInitHostResourcesFn(HostResourcesFn) Options
    69  
    70  	// InitHostResourcesFn returns the InitHostResourcesFn
    71  	InitHostResourcesFn() HostResourcesFn
    72  
    73  	// SetReleaseHostResourcesFn sets the ReleaseHostResourcesFn
    74  	SetReleaseHostResourcesFn(HostResourcesFn) Options
    75  
    76  	// ReleaseHostResourcesFn returns the ReleaseHostResourcesFn
    77  	ReleaseHostResourcesFn() HostResourcesFn
    78  
    79  	// SetEnvMap sets the EnvMap used to execute any child processes
    80  	SetEnvMap(exec.EnvMap) Options
    81  
    82  	// EnvMap returns the EnvMap used to execute any child processes
    83  	EnvMap() exec.EnvMap
    84  
    85  	// SetHeartbeatTimeout sets the duration after which failed attempts at
    86  	// sending heartbeats will trigger the agent to reset itself
    87  	SetHeartbeatTimeout(time.Duration) Options
    88  
    89  	// HeartbeatTimeout sets the duration after which failed attempts at
    90  	// sending heartbeats will trigger the agent to reset itself
    91  	HeartbeatTimeout() time.Duration
    92  
    93  	// SetNowFn sets the now fn
    94  	SetNowFn(xclock.NowFn) Options
    95  
    96  	// NowFn returns the now fn
    97  	NowFn() xclock.NowFn
    98  
    99  	// SetNewFileMode sets the new file mode
   100  	SetNewFileMode(value os.FileMode) Options
   101  
   102  	// NewFileMode returns the new file mode
   103  	NewFileMode() os.FileMode
   104  
   105  	// SetNewDirectoryMode sets the new directory mode
   106  	SetNewDirectoryMode(value os.FileMode) Options
   107  
   108  	// NewDirectoryMode returns the new directory mode
   109  	NewDirectoryMode() os.FileMode
   110  }
   111  
   112  // HostResourcesFn is used by the Agent to capture/release any resources
   113  // required on the host. E.g. we use hosts that are typically running
   114  // staging versions of the service being tested, for our integration tests
   115  // as well. So we use this function hook to stop any running instances of
   116  // said service on the host.
   117  type HostResourcesFn func() error
   118  
   119  // ExecGenFn specifies the command to execute for a given build, and config
   120  // e.g. say the process binary expects the config with a cli flag "-f",
   121  // ExecGenFn("binary", "config") == "binary", ["-f", "config"]
   122  type ExecGenFn func(buildPath string, configPath string) (execPath string, args []string)