Before kore needed to be built with NOTLS=1 to be able to do non TLS
connections. This has been like this for years.
It is time to allow non TLS listeners without having to rebuild Kore.
This commit changes your configuration format and will break existing
applications their config.
Configurations now get listener {} contexts:
listen default {
bind 127.0.0.1 8888
}
The above will create a listener on 127.0.0.1, port 8888 that will serve
TLS (still the default).
If you want to turn off TLS on that listener, specify "tls no" in that
context.
Domains now need to be attached to a listener:
Eg:
domain * {
attach default
}
For the Python API this kills kore.bind(), and kore.bind_unix(). They are
replaced with:
kore.listen("name", ip=None, port=None, path=None, tls=True).
- Kore can now fully be configured via Python code if one wants nothing to
do with configuration files.
- Kore can now start single python files and no longer requires them to be
inside a module directory.
- Pass all regex capture groups to the handler methods, allowing you to
get access to them immediately.
- Change python websocket_handshake to take callable objects directly.
- Added a new deployment configuration option. If set to "dev" or
"development" Kore will automatically foreground, no chroot / etc.
If set to "production" Kore *will* chroot, drop privs, etc.
- Many more..
These are all backported from a project that I was working on a while
ago. I decided these should go back into mainline Kore.
With this commit all Kore processes (minus the parent) are running
under seccomp.
The worker processes get the bare minimum allowed syscalls while each module
like curl, pgsql, etc will add their own filters to allow what they require.
New API functions:
int kore_seccomp_filter(const char *name, void *filter, size_t len);
Adds a filter into the seccomp system (must be called before
seccomp is enabled).
New helpful macro:
define KORE_SYSCALL_ALLOW(name)
Allow the syscall with a given name, should be used in
a sock_filter data structure.
New hooks:
void kore_seccomp_hook(void);
Called before seccomp is enabled, allows developers to add their
own BPF filters into seccomp.
- decouple pgsql from the HTTP request allowing it to be used in other
contexts as well (such as a task, etc).
- change names to dbsetup() and dbquery().
eg:
result = kore.dbquery("db", "select foo from bar")
- If Kore is built with PYTHON=1 you can now specify the module that
should be loaded on the command-line.
eg: $ kore -frn myapp
- Add skeleton generation for python applications to kodev.
eg: $ kodev create -p myapp
This should make it a whole lot easier to get started with kore python.
This commit adds the CURL=1 build option. When enabled allows
you to schedule CURL easy handles onto the Kore event loop.
It also adds an easy to use HTTP client API that abstracts away the
settings required from libcurl to make HTTP requests.
Tied together with HTTP request state machines this means you can
write fully asynchronous HTTP client requests in an easy way.
Additionally this exposes that API to the Python code as well
allowing you do to things like:
client = kore.httpclient("https://kore.io")
status, body = await client.get()
Introduces 2 configuration options:
- curl_recv_max
Max incoming bytes for a response.
- curl_timeout
Timeout in seconds before a transfer is cancelled.
This API also allows you to take the CURL easy handle and send emails
with it, run FTP, etc. All asynchronously.
By default kore will restart worker processes if they terminate
unexpected. However in certain scenarios you may want to bring down
an entire kore instance if a worker process fails.
By setting worker_death_policy to "terminate" the Kore server will
completely stop if a worker exits unexpected.
this change also stops python coroutines from waking up very
late after their timeout has expired.
in filerefs, don't prime the timer until we actually have something
to expire, and kill the timer when the last ref drops.
Move away from the parent constantly hitting the disk for every
accesslog the workers are sending.
The workers will now write their own accesslogs to shared
memory before the parent will pick those up. The parent
will flush them to disk once every second or if they grow
larger then 1MB.
This removes the heavy penalty for having access logs
turned on when you are dealing with a large volume
of requests.
This commit removes TLS 1.0 support no matter what OpenSSL
you are linking against.
Changes the value of tls_version from 1.2 to both. Meaning if
you link with OpenSSL 1.1.1 you will get 1.2 + 1.3.
This adds kore.proc to the python runtime allowing async processing
handling:
The kore.proc method takes the command to run and an optional timeout
parameter in milliseconds. If the process did not exit normally after
that amount of time a TimeoutError exception is raised.
For instance:
async def run(cmd):
proc = kore.proc(cmd, 1000)
try:
await proc.send("hello")
proc.close_stdin()
except TimeoutError:
proc.kill()
retcode = await proc.reap()
return retcode
If exists these functions are called when the worker is exiting
and when right before the parent exists.
Allows for cleanup code for applications if need to do cleanup on exit.
This means you can now do things like:
resp = await koresock.recv(1024)
await koresock.send(resp)
directly from page handlers if they are defined as async.
Adds lots more to the python goo such as fatalx(), bind_unix(),
task_create() and socket_wrap().
Now anyone can schedule events and get a callback to work as long
as the user data structure that is added for the event begins
with a kore_event data structure.
All event state is now kept in that kore_event structure and renamed
CONN_[READ|WRITE]_POSSIBLE to KORE_EVENT_[READ|WRITE].
This commit introduces the ability for the keymgr process
to reload the certificates/keys for domains when receiving
a SIGUSR1 signal.
The keymgr receives 2 new configuration options:
- keymgr_root_path
The root path where the keymgr will live.
If -n is not specified when the application starts the
keymgr process will chroot into here.
- keymgr_runas_user
The user the keymgr will drop privileges towards if
-r was not specified.
All certfile and certkey configuration options are now relative to the
keymgr_root_path configuration setting.
The keymgr process will now also load the certificate for the domain
(rather then the workers) and submit these to the worker processes so
they can be reloaded when required.
Worker processes will refuse connections until the TLS configuration
for a given domain is completed (aka: the workers receive the certificate
for that domain).
Other changes:
- client_certificates renamed to client_verify.
- the chroot configuration option is now called root.
- kore is a little more verbose if privsep options are missing.
- filemaps are now relative to the root configuration option.
A filemap is a way of telling Kore to serve files from a directory
much like a traditional webserver can do.
Kore filemaps only handles files. Kore does not generate directory
indexes or deal with non-regular files.
The way files are sent to a client differs a bit per platform and
build options:
default:
- mmap() backed file transfer due to TLS.
NOTLS=1
- sendfile() under FreeBSD, macOS and Linux.
- mmap() backed file for OpenBSD.
The opened file descriptors/mmap'd regions are cached and reused when
appropriate. If a file is no longer in use it will be closed and evicted
from the cache after 30 seconds.
New API's are available allowing developers to use these facilities via:
void net_send_fileref(struct connection *, struct kore_fileref *);
void http_response_fileref(struct http_request *, struct kore_fileref *);
Kore will attempt to match media types based on file extensions. A few
default types are built-in. Others can be added via the new "http_media_type"
configuration directive.
This function now takes any remaining arguments passed on the command line
after kore parsed its own.
For C the new prototype looks like this:
void kore_parent_configure(int argc, char **argv);
For python code, kore will pass each argument to the function so you
can do things like:
def kore_parent_configure(arg1, arg2):
doing this allows us to get rid of the validator reload
and handler reload as well as fixing websocket runtime
callbacks which were never being resolved upon module reloads.
Having the create, build, run tools baked into the kore binary
made things harder then they had to be for multiple projects with
each different build flavors.
So move away this functionality into a new "kodev" (name may change)
binary that is installed next to kore.
The new build tools will automatically pick up the correct flavors
the kore binary it points to is installed with. Or for single builds
what flavors where enabled.
The new tool also will honor looking into PREFIX for the kore binary
when doing a `kodev run`.
Additionally add a new command "info" that shows some basic info
about your project and how it will be built. For example it will
show you the flavors of the kore binary installed on the system
or the flavors you configured for a single binary build.
Obligitory, hacking on a plane comment.
Joris Vink