Config defines overseer's run-time configuration

File checks the provided Path, at the provided Interval for new Go binaries. When a new binary is found it will replace the currently running binary.

Github uses the Github V3 API to retrieve the latest release of a given repository and enumerate its assets. If a release contains a matching asset, i

HTTP fetcher uses HEAD requests to poll the status of a given file. If it detects this file has been updated, it will fetch and return its io.Reader s

Info is a point-in-time snapshot of the master process's upgrade and restart state, retrieved with MasterInfo.

Interface defines the required fetcher functions

S3 uses authenticated HEAD requests to poll the status of a given object. If it detects this file has been updated, it will perform an object GET and

State contains the current run-time state of overseer

TailWriter is a fixed-size ring buffer that retains the most recent N bytes written. Write is amortized O(len(p)) with no reallocation after the first

a overseer master process

notifying on close net.Conn

gracefully closing net.Listener

syncBuffer guards a bytes.Buffer used as cmd.Stdout: exec's pipe-copier goroutine keeps writing while the hang-test reads it mid-Wait.

a overseer worker process