History

tfarina ebd90ee211 webtry: Check the result of os.Chdir(). As mentioned in http://golang.org/doc/effective_go.html#blank_assign, errors are provided for a reason, so always check them. The documentation for this function is available at http://golang.org/pkg/os/#Chdir. BUG=None TEST=None R=jcgregorio@google.com Review URL: https://codereview.chromium.org/651343002		2014-10-15 13:48:47 -07:00
..
poly	Fix some references to non-existant polyfill directory.	2014-09-29 10:50:59 -07:00
res	Re-land ganesh checkbox. I needed to increase the size of the address	2014-10-13 21:52:05 -04:00
scripts	Re-land ganesh checkbox. I needed to increase the size of the address	2014-10-13 21:52:05 -04:00
setup	Re-land ganesh checkbox. I needed to increase the size of the address	2014-10-13 21:52:05 -04:00
templates	Re-land ganesh checkbox. I needed to increase the size of the address	2014-10-13 21:52:05 -04:00
build	In the generated fiddle, set the portable fonts flag first.	2014-10-08 12:04:20 -04:00
DESIGN.md	add support for skfiddle width/height options	2014-10-13 13:58:09 -04:00
gyp_for_webtry	gyp build of skfiddle apps, take 2	2014-09-17 08:42:46 -07:00
main.cpp	Re-land ganesh checkbox. I needed to increase the size of the address	2014-10-13 21:52:05 -04:00
README.md	Fix webtry setup once instructions in README doc.	2014-10-13 12:37:52 -07:00
result.cpp	Add the ability to select a source image to use in the code.	2014-05-29 15:58:00 +00:00
safec	gyp build of skfiddle apps, take 2	2014-09-17 08:42:46 -07:00
safec++	Set ulimits for the compile stage.	2014-04-30 19:38:51 +00:00
seccomp_bpf.h	disable webtry seccmp on non-linux build	2014-09-09 15:57:33 -07:00
TODO.md	Factor out common template code. Send stdout back to web page.	2014-04-22 21:13:45 +00:00
webtry.go	webtry: Check the result of os.Chdir().	2014-10-15 13:48:47 -07:00

README.md

WebTry Server

Allows trying out Skia code in the browser. Run a local webserver and from the pages it serves try out Skia code and see the results immediately. To make sandboxing easier this must be built w/GPU off.

Running Locally

One time setup:

$ export SKIA_ROOT=path_to_your_skia_source
$ export WEBTRY_INOUT=path_to_a_writeable_directory
$ mkdir -p $WEBTRY_INOUT

Then, to run:

$ cd experimental/webtry
$ go get -d
$ ./build
$ ./webtry

Then visit http://localhost:8000 in your browser.

Only tested under linux and MacOS, doubtful it will work on other platforms.

Server Setup

Create a GCE instance:

gcutil --project=google.com:skia-buildbots addinstance skia-webtry-b \
  --zone=us-central2-b --external_ip_address=108.170.220.126 \
  --service_account=default \
  --service_account_scopes="https://www.googleapis.com/auth/devstorage.full_control" \
  --network=default --machine_type=n1-standard-1 --image=backports-debian-7-wheezy-v20140331 \
  --persistent_boot_disk

Make sure port 80 is accessible externally for the above instance.

SSH into the instance:

gcutil --project=google.com:skia-buildbots ssh --ssh_user=default skia-webtry-b

Do the first time

The following things only need to be done once.

SSH into the server as default.
sudo apt-get install git
git clone https://skia.googlesource.com/skia
cd ~/skia/experimental/webtry/setup
./webtry_setup.sh
Add the following to the /etc/schroot/minimal/fstab:

none /run/shm tmpfs rw,nosuid,nodev,noexec 0 0 /home/webtry/inout /skia_build/inout none rw,bind 0 0 /home/webtry/cache /skia_build/cache none rw,bind 0 0

Change /etc/monit/monitrc to:

set daemon 2

then run the following so it applies:

sudo /etc/init.d/monit restart

This means that monit will poll every two seconds that our application is up and running.

Set the TCP keepalive. For more info see: https://developers.google.com/cloud-sql/docs/gce-access

sudo sh -c 'echo 60 > /proc/sys/net/ipv4/tcp_keepalive_time'

To update the code

SSH into the server as default.
cd ~/skia/experimental/webtry/setup
git pull
./webtry_setup.sh

Third Party Code

res/js/polyfill.js - Various JS polyfill libraries. To rebuild or update see poly/README.md.