grim/convey
Clone
Summary
Browse
Changes
Graph
Bump the version for release
v0.14.0-alpha3
2018-02-20, Gary Kramlich
166a6d1979fa
Bump the version for release
// Convey
// Copyright 2016-2018 Gary Kramlich <grim@reaperworld.com>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package
kubectl
import
(
"io/ioutil"
"path/filepath"
"github.com/aphistic/gomol"
"bitbucket.org/rw_grim/convey/command"
"bitbucket.org/rw_grim/convey/docker"
"bitbucket.org/rw_grim/convey/environment"
"bitbucket.org/rw_grim/convey/state"
"bitbucket.org/rw_grim/convey/yaml"
)
// CRUDCommand represents a call to a `kubectl` command to manage deployments.
type
CRUDCommand
struct
{
Context
string
`yaml:"context"`
Namespace
string
`yaml:"namespace"`
Files
yaml
.
StringOrSlice
`yaml:"files"`
Selector
string
`yaml:"selector"`
Engine
string
`yaml:"engine"`
}
// templateNone just copies files from the workspace into the scratch directory.
func
(
c
*
CRUDCommand
)
templateNone
(
name
,
scratchDir
string
,
cmd
*
command
.
Generator
,
logger
*
gomol
.
LogAdapter
,
env
[]
string
,
st
*
state
.
State
)
error
{
// update the files we're going to run by joining them with our scratch directory
for
_
,
file
:=
range
c
.
Files
{
realFile
,
err
:=
environment
.
Mapper
(
file
,
env
)
if
err
!=
nil
{
return
err
}
cmd
.
Append
(
"-f"
,
filepath
.
Join
(
scratchDir
,
realFile
))
}
// now create an export task to get our files out of the workspace
export
:=
&
docker
.
Export
{
Files
:
c
.
Files
,
Path
:
scratchDir
,
}
// make sure the export task is valid
err
:=
export
.
Valid
()
if
err
!=
nil
{
return
err
}
// run the export
err
=
export
.
Execute
(
name
,
logger
,
env
,
st
)
if
err
!=
nil
{
return
err
}
return
nil
}
// templateEnvironment will copy files from the workspace into the scratch
// directory and replace environment variables with those that convey knows
// about.
func
(
c
*
CRUDCommand
)
templateEnvironment
(
name
,
scratchDir
string
,
cmd
*
command
.
Generator
,
logger
*
gomol
.
LogAdapter
,
env
[]
string
,
st
*
state
.
State
)
error
{
// run the normal export which we will update in place.
err
:=
c
.
templateNone
(
name
,
scratchDir
,
cmd
,
logger
,
env
,
st
)
if
err
!=
nil
{
return
err
}
// now iterate the files and replace all their environment variables with those that we have
for
_
,
file
:=
range
c
.
Files
{
// resolve the filename if it's templated
resolvedFile
,
err
:=
environment
.
Mapper
(
file
,
env
)
if
err
!=
nil
{
return
err
}
// figure out the full path to it
absFile
:=
filepath
.
Join
(
scratchDir
,
resolvedFile
)
// read the file
raw
,
err
:=
ioutil
.
ReadFile
(
absFile
)
if
err
!=
nil
{
return
err
}
// replace the environment variables in it
data
,
err
:=
environment
.
Mapper
(
string
(
raw
),
env
)
if
err
!=
nil
{
return
err
}
// write the templated data back out
err
=
ioutil
.
WriteFile
(
absFile
,
[]
byte
(
data
),
0700
)
if
err
!=
nil
{
return
err
}
}
return
nil
}
// Execute runs the given `kubectl` command with the given arguments.
func
(
c
*
CRUDCommand
)
Execute
(
name
,
action
string
,
logger
*
gomol
.
LogAdapter
,
env
[]
string
,
st
*
state
.
State
)
error
{
fullEnv
:=
environment
.
Merge
(
env
,
st
.
GetEnv
())
// if we have a context use it
if
c
.
Context
!=
""
{
err
:=
useContext
(
name
,
c
.
Context
,
logger
,
env
,
st
.
PlanTimeout
)
if
err
!=
nil
{
return
err
}
}
// now build the apply command line
cmd
:=
command
.
NewGenerator
(
"kubectl"
,
action
)
if
c
.
Namespace
!=
""
{
namespace
,
err
:=
environment
.
Mapper
(
c
.
Namespace
,
fullEnv
)
if
err
!=
nil
{
return
err
}
cmd
.
Append
(
"-n"
,
namespace
)
}
if
c
.
Selector
!=
""
{
selector
,
err
:=
environment
.
Mapper
(
c
.
Selector
,
fullEnv
)
if
err
!=
nil
{
return
err
}
cmd
.
Append
(
"-l"
,
selector
)
}
// create our scratch directory
path
,
err
:=
st
.
TaskDirectory
(
name
)
if
err
!=
nil
{
return
err
}
// run our files through the template engine
switch
c
.
Engine
{
case
""
:
fallthrough
case
"none"
:
err
=
c
.
templateNone
(
name
,
path
,
cmd
,
logger
,
fullEnv
,
st
)
case
"env"
:
fallthrough
case
"environment"
:
err
=
c
.
templateEnvironment
(
name
,
path
,
cmd
,
logger
,
fullEnv
,
st
)
}
// if there was an error with templating bail
if
err
!=
nil
{
return
err
}
// finally run the command
return
command
.
Run
(
name
,
cmd
.
Command
(),
st
.
PlanTimeout
)
}