<s>
Terraform	B-General_Concept
is	O
an	O
open-source	B-License
infrastructure-as-code	B-Architecture
software	O
tool	O
created	O
by	O
HashiCorp	O
.	O
</s>
<s>
Users	O
define	O
and	O
provide	O
data	O
center	O
infrastructure	O
using	O
a	O
declarative	O
configuration	O
language	O
known	O
as	O
HashiCorp	O
Configuration	O
Language	O
(	O
HCL	O
)	O
,	O
or	O
optionally	O
JSON	B-General_Concept
.	O
</s>
<s>
Terraform	B-General_Concept
manages	O
external	O
resources	O
(	O
such	O
as	O
public	O
cloud	O
infrastructure	O
,	O
private	O
cloud	O
infrastructure	O
,	O
network	O
appliances	O
,	O
software	B-Architecture
as	I-Architecture
a	I-Architecture
service	I-Architecture
,	O
and	O
platform	B-Application
as	I-Application
a	I-Application
service	I-Application
)	O
with	O
"	O
providers	O
"	O
.	O
</s>
<s>
Users	O
can	O
interact	O
with	O
Terraform	B-General_Concept
providers	O
by	O
declaring	O
resources	O
or	O
by	O
calling	O
data	O
sources	O
.	O
</s>
<s>
Rather	O
than	O
using	O
imperative	O
commands	O
to	O
provision	O
resources	O
,	O
Terraform	B-General_Concept
uses	O
declarative	O
configuration	O
to	O
describe	O
the	O
desired	O
final	O
state	O
.	O
</s>
<s>
Once	O
a	O
user	O
invokes	O
Terraform	B-General_Concept
on	O
a	O
given	O
resource	O
,	O
Terraform	B-General_Concept
will	O
perform	O
CRUD	B-General_Concept
actions	O
on	O
the	O
user	O
's	O
behalf	O
to	O
accomplish	O
the	O
desired	O
state	O
.	O
</s>
<s>
The	O
infrastructure	B-Architecture
as	I-Architecture
code	I-Architecture
can	O
be	O
written	O
as	O
modules	O
,	O
promoting	O
reusability	O
and	O
maintainability	O
.	O
</s>
<s>
Terraform	B-General_Concept
supports	O
a	O
number	O
of	O
cloud	O
infrastructure	O
providers	O
such	O
as	O
Amazon	B-Application
Web	I-Application
Services	I-Application
,	O
Cloudflare	B-Application
,	O
Microsoft	B-Application
Azure	I-Application
,	O
IBM	B-General_Concept
Cloud	I-General_Concept
,	O
Serverspace	O
,	O
Selectel	O
Google	B-General_Concept
Cloud	I-General_Concept
Platform	I-General_Concept
,	O
DigitalOcean	B-Application
,	O
Oracle	B-General_Concept
Cloud	I-General_Concept
Infrastructure	I-General_Concept
,	O
Yandex.Cloud	B-General_Concept
,	O
VMware	B-Application
vSphere	I-Application
,	O
and	O
OpenStack	B-Application
.	O
</s>
<s>
HashiCorp	O
maintains	O
a	O
Terraform	B-General_Concept
Module	O
Registry	O
,	O
launched	O
in	O
2017	O
.	O
</s>
<s>
In	O
2019	O
,	O
Terraform	B-General_Concept
introduced	O
the	O
paid	O
version	O
called	O
Terraform	B-General_Concept
Enterprise	O
for	O
larger	O
organizations	O
.	O
</s>
<s>
Terraform	B-General_Concept
relies	O
on	O
providers	O
to	O
enable	O
interaction	O
with	O
various	O
APIs	O
and	O
services	O
.	O
</s>
<s>
These	O
providers	O
are	O
configured	O
in	O
the	O
Terraform	B-General_Concept
configuration	O
code	O
and	O
allow	O
access	O
to	O
Cloud-based	O
offerings	O
,	O
such	O
as	O
AWS	B-Application
or	O
GCP	O
,	O
and	O
Software-as-a-Service	B-Architecture
offerings	O
.	O
</s>
<s>
This	O
allows	O
developers	O
using	O
Terraform	B-General_Concept
to	O
integrate	O
multiple	O
services	O
into	O
their	O
automation	O
workflows	O
.	O
</s>
<s>
Terraform	B-General_Concept
modules	O
are	O
designed	O
to	O
simplify	O
the	O
creation	O
of	O
multiple	O
resources	O
by	O
grouping	O
them	O
logically	O
in	O
a	O
single	O
and	O
reusable	O
offering	O
.	O
</s>
