The TaskForest package includes two simple, low-footprint web
taskforestdssl, written in perl. They are
identical in every way, except that the latter is a secure SSL
version. See the web server
security page for more info. The webserver uses the LWP
library and its sole purpose is to give you an web-based interface
to TaskForest. I chose to write a perl-based web server because it
is easy for users to download, install and deploy. Also, it may be
too much to ask users to install and mantain Apache, and configure
mod_perl, just to get this web-based access.
The behavior of
taskforestd is controlled with a
taskforestd.cfg. This configuration
file must be customized as described below, before you can use
the web server. Once you have customized the configuration file, you
can start web server like this:
taskforestd --config_file=taskforestd.cfg OR taskforestdssl --config_file=taskforestd.cfg
You can stop the web server like this:
taskforestd --config_file=taskforestd.cfg --stop OR taskforestdssl --config_file=taskforestd.cfg --stop
For example, if the configuration file specifies that the host on
taskforestd runs is www.example.com, then the web server will be
available at http://www.example.com/ .
To use the webserver (or even the web service described later) you
must have a valid userid and password.
not ship with any default userid and password pairs. A password is
required to authenticate the person making requests via the web
browswer. This userid and password combination may be (and should be)
different from the userid and password of the account under which
taskforestd is running.
# This is a sample taskforestd configuration file # Please change all settings to values that make sense # for you. # These are the four required command line arguments to # taskforest log_dir = "t/logs" family_dir = "t/families" job_dir = "t/jobs" instructions_dir = "instructions" # This is a file that ensures that only one child # process can accept connections at any time lock_file = "t/lock_file" # The HTTP server document_root document_root = "htdocs" # The host on which the taskforest daemon will run host = "127.0.0.1" # The port on which to listen for connections port = 1111 # The number of children available at any time child_count = 10 # The number of requests each child process should # serve before exiting. # (To protect from memory leaks, etc) requests_per_child = 40 # Every time a child dies wait this much time (in # seconds) before starting a new child. Do NOT set # this value to less than 1, otherwise you may # encounter CPU thrashing. Set it to something like # 10 seconds if you're testing. respawn_wait = 1 # my default, log stdout messages with status >= this. # This only effects stdout # The sequence of thresholds (smallest to largest is): # debug, info, warn, error, fatal log_threshold = "info" # These file names should NOT end with '.0' or '.1' # because then they will be mistaken for job log files #log_file = "taskforestd.%Y%m%d.%H%M%S.stdout" #err_file = "taskforestd.%Y%m%d.%H%M%S.stderr" log_file = "taskforestd.stdout" err_file = "taskforestd.stderr" pid_file = "taskforestd.pid" # Run as a daemon (detach from terminal) run_as_daemon = 1 # # In order for the web site to work, you must have # at least one valid user set up. As the commented # examples below show, you may have more than one. # The value of each valid_user option is the login # followed by a colon (:) followed by a crypt hash # of the password. There are many ways to generate # the crypt hash, including using the crypt perl # function. You can also use the gen_password # script included with this release. # #valid_user = "test:e3MdYgHPUo.QY" #valid_user = "foo:jp8Xizm2S52yw" # The path to the server private key file server_key_file = "certs/server-key.pem" # The path to the server certificate server_cert_file = "certs/server-cert.pem"