Add tango config

Signed-off-by: Will Killian <[email protected]>

Author: willkill07

.gitignore

@@ -9,7 +9,6 @@ vmms/id_rsa*
 courselabs/*
 dockerTmp/*
 # config
-config.py
 
 # Virtualenv
 .Python

config.py

@@ -0,0 +1,160 @@
+#
+# config.py - Global configuration constants and runtime info
+#
+
+import logging
+import time
+
+# Config - defines
+import os
+
+
+class Config(object):
+    #####
+    # Part 1: Tango constants for developers
+    #
+    # These allow developers to run test versions of Tango on the same
+    # server as the production Tango
+
+    # Unique prefix that defines VM name space for this Tango
+    # version. When working in development, this prefix should be your
+    # unique identifier. The "prod" prefix is reserved for production
+    DEFAULT_PREFIX = "local"
+    PREFIX = os.getenv("DOCKER_DEPLOYMENT", DEFAULT_PREFIX).lower()
+
+    # Default port for the RESTful server to listen on.
+    PORT = 3000
+
+    # Log file. Setting this to None sends the server output to stdout
+    LOGFILE = None
+
+    # Logging level
+    LOGLEVEL = logging.INFO
+
+    # Courselabs directory. Must be created before starting Tango
+    COURSELABS = "courselabs"
+
+    # Directory within each courselab where Tango will copy the output
+    # for jobs of that courselab
+    OUTPUT_FOLDER = "output"
+
+    # VMMS to use. Must be set to a VMMS implemented in vmms/ before
+    # starting Tango.  Options are: "localDocker", "distDocker",
+    # "tashiSSH", and "ec2SSH"
+    VMMS_NAME = "localDocker"
+
+    # Update this to the 'volumes' directory of your Tango installation if
+    # Docker is being used as the VMMs.
+    # It must be an absolute path with trailing slash, i.e
+    # /opt/TangoService/Tango/volumes/
+    DEFAULT_DOCKER_VOLUME_PATH = ""
+    DOCKER_VOLUME_PATH = os.getenv("DOCKER_VOLUME_PATH", DEFAULT_DOCKER_VOLUME_PATH)
+
+
+    #####
+    # Part 2: Constants that shouldn't need to change very often.
+    #
+
+    # Keys for Tango to authenticate client requests
+    DEFAULT_KEY = "test"
+    KEYS = [os.getenv("RESTFUL_KEY", DEFAULT_KEY)]
+
+    # Queue manager checks for new work every so many seconds
+    DISPATCH_PERIOD = 0.2
+
+    # Timer polling interval used by timeout() function
+    TIMER_POLL_INTERVAL = 1
+
+    # Number of server threads
+    NUM_THREADS = 20
+
+    # We have the option to reuse VMs or discard them after each use
+    REUSE_VMS = True
+
+    # Worker waits this many seconds for functions waitvm, copyin (per
+    # file), runjob, and copyout (per file) functions to finish.
+    INITIALIZEVM_TIMEOUT = 180
+    WAITVM_TIMEOUT = 60
+    COPYIN_TIMEOUT = 30
+    RUNJOB_TIMEOUT = 60
+    COPYOUT_TIMEOUT = 30
+
+    # Docker constants
+    BOOT2DOCKER_INIT_TIMEOUT = 5
+    BOOT2DOCKER_START_TIMEOUT = 30
+    BOOT2DOCKER_ENV_TIMEOUT = 5
+    DOCKER_IMAGE_BUILD_TIMEOUT = 300
+    DOCKER_RM_TIMEOUT = 5
+    DOCKER_HOST_USER = ""
+    
+    # Docker autograding container resource limits
+    DOCKER_CORES_LIMIT = None
+    DOCKER_MEMORY_LIMIT = None  # in MB
+
+    # Maximum size for input files in bytes
+    MAX_INPUT_FILE_SIZE = 250 * 1024 * 1024  # 250MiB
+
+    # Maximum size for output file in bytes
+    MAX_OUTPUT_FILE_SIZE = 1024 * 1024 * 10 # 10MiB
+
+    # VM ulimit values
+    VM_ULIMIT_FILE_SIZE = 100 * 1024 * 1024
+    VM_ULIMIT_USER_PROC = 100
+
+    # How many times to reschedule a failed job
+    JOB_RETRIES = 2
+
+    # How many times to attempt an SSH connection
+    SSH_RETRIES = 5
+
+    # Frequency of retrying SSH connections (in seconds)
+    SSH_INTERVAL = 0.5
+
+    # Give VMMS this many seconds to destroy a VM before giving up
+    DESTROY_SECS = 5
+
+    # Time to wait between creating VM instances to give DNS time to cool down
+    CREATEVM_SECS = 1
+
+    # Default vm pool size
+    POOL_SIZE = 8
+
+    # Optionally log finer-grained timing information
+    LOG_TIMING = False
+
+    # Largest job ID
+    MAX_JOBID = 10000
+
+    ######
+    # Part 3: Runtime info that you can retrieve using the /info route
+    #
+    start_time = time.time()
+    job_requests = 0
+    job_retries = 0
+    waitvm_timeouts = 0
+    copyin_errors = 0
+    runjob_timeouts = 0
+    runjob_errors = 0
+    copyout_errors = 0
+
+    ######
+    # Part 4: Settings for shared memory
+    #
+    USE_REDIS = True
+    DEFAULT_REDIS_HOSTNAME = "127.0.0.1"
+    REDIS_HOSTNAME = os.getenv("DOCKER_REDIS_HOSTNAME", DEFAULT_REDIS_HOSTNAME).lower()
+    REDIS_PORT = 6379
+
+    ######
+    # Part 5: EC2 Constants
+    #
+    EC2_REGION = ""
+    EC2_USER_NAME = ""
+    DEFAULT_AMI = ""
+    DEFAULT_INST_TYPE = ""
+    DEFAULT_SECURITY_GROUP = ""
+    SECURITY_KEY_PATH = ""
+    DYNAMIC_SECURITY_KEY_PATH = ""
+    SECURITY_KEY_NAME = ""
+    TANGO_RESERVATION_ID = ""
+    INSTANCE_RUNNING = 16  # Status code of a instance that is running