<s>
Semaphore	B-Application
is	O
a	O
hosted	O
continuous	O
integration	O
and	O
deployment	O
service	O
used	O
for	O
testing	O
and	O
deploying	O
software	O
projects	O
hosted	O
on	O
GitHub	O
and	O
BitBucket	O
.	O
</s>
<s>
While	O
open	O
source	O
projects	O
can	O
use	O
Semaphore	B-Application
for	O
free	O
in	O
its	O
full	O
capacity	O
,	O
free	O
use	O
for	O
private	O
projects	O
is	O
limited	O
to	O
100	O
builds	O
per	O
month	O
(	O
Semaphore	B-Application
Classic	O
)	O
or	O
$20	O
of	O
service	O
every	O
month	O
(	O
Semaphore	B-Application
2.0	O
)	O
.	O
</s>
<s>
One	O
of	O
Semaphore	B-Application
’s	O
features	O
is	O
native	O
Docker	B-Language
support	O
,	O
which	O
enables	O
testing	O
and	O
deploying	O
Docker-based	O
applications	O
.	O
</s>
<s>
Semaphore	B-Application
also	O
offers	O
Boosters	O
,	O
a	O
feature	O
that	O
reduces	O
the	O
duration	O
of	O
running	O
a	O
test	O
suite	O
to	O
that	O
of	O
the	O
longest	O
test	O
through	O
automatic	O
parallelization	O
of	O
builds	O
for	O
Ruby	B-Language
projects	O
.	O
</s>
<s>
Semaphore	B-Application
supports	O
the	O
following	O
programming	O
languages	O
:	O
C/C	O
++	O
,	O
Clojure	B-Language
,	O
Elixir	B-Language
,	O
Go	B-Application
,	O
Java	B-Language
,	O
JavaScript	B-Language
,	O
PHP	B-Application
,	O
Python	B-Language
,	O
Ruby	B-Language
and	O
Scala	B-Application
.	O
</s>
<s>
Some	O
of	O
the	O
supported	O
frameworks	O
include	O
:	O
test/unit	O
,	O
RSpec	B-Application
,	O
Cucumber	B-Application
,	O
Steak	O
,	O
Capybara	B-Library
Webkit	O
,	O
Jasmine	B-Language
,	O
Karma	O
,	O
Minitest	O
,	O
Poltergeist	O
,	O
PhantomJS	B-Protocol
.	O
</s>
<s>
Deployment	O
integrations	O
include	O
AWS	B-Application
,	O
Heroku	B-General_Concept
,	O
Capistrano	B-Application
and	O
Cloud	O
66	O
.	O
</s>
<s>
Semaphore	B-Application
2.0	O
supports	O
iOS	O
and	O
MacOS	O
.	O
</s>
<s>
Once	O
the	O
project	O
and	O
the	O
branch	O
have	O
been	O
selected	O
,	O
Semaphore	B-Application
determines	O
the	O
configuration	O
of	O
the	O
project	O
,	O
by	O
extracting	O
meta	O
information	O
.	O
</s>
<s>
After	O
customizing	O
and	O
configuring	O
the	O
wanted	O
builds	O
,	O
Semaphore	B-Application
begins	O
testing	O
.	O
</s>
