Split up the main page into different parts.
This commit is contained in:
parent
f7e94c21f9
commit
a4d5060163
45
cmd/templaterender/render.go
Normal file
45
cmd/templaterender/render.go
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@ -0,0 +1,45 @@
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package main
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import (
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"context"
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"converge/pkg/templates"
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"github.com/a-h/templ"
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"os"
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"path/filepath"
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)
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type RenderFunc func(secure string, host string, username string) templ.Component
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type Params struct {
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secure string
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host string
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username string
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}
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type Rendering struct {
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params Params
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render RenderFunc
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}
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func render(dir string, name string, params Params, render RenderFunc) {
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fname := filepath.Join(dir, name)
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f, err := os.Create(fname)
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if err != nil {
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panic(err)
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}
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defer f.Close()
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render(params.secure, params.host, params.username).Render(context.Background(), f)
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}
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func main() {
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dir := "html"
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params := Params{
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secure: "s",
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host: "example.com",
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username: "converge",
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}
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render(dir, "index.html", params, templates.Index)
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}
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44
pkg/templates/about.templ
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44
pkg/templates/about.templ
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@ -0,0 +1,44 @@
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package templates
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templ About() {
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<div>
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<h1>About</h1>
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<p>
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Converge is a utility for troubleshooting builds on continuous integration servers.
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It solves a common problem where the cause of job failure is difficult to determine.
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This is complicated further by the fact that build jobs are usually run on a build
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farm where there is no access to the build agents or in more modern envrionments when
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jobs are run in ephemeral containers.
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</p>
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<p>
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With Converge it is possible to get remote shell access to such jobs. This works
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by configuring the build job to connect to a Converge server using an agent program.
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The agent program can be downloaded from within the CI job using curl or wget.
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Next, an end-user can connect to the Converge server, a rendez-vous server, that connects
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the client and server together.
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</p>
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<p>
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The setup is such that the connection from client (end-user) to server (agent on CI job)
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is end-to-end encrypted. The Converge server itself is no more than a bitpipe which pumps
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data between client and agent.
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</p>
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<p>
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Both ssh and sftp are supported. Multiple shells are also allowed.
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</p>
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<p>
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There is a timeout mechanism in the agent such that jobs do not hang indefinitely
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waiting for a connection. This mechanism is useful to make sure build agents do not keep
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build agents occupied for a long time. By default, the agent exits with status 0 when
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the first client exits after logging in. This behavior as well as general expiry can be
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controlled from within a shell session by touching a .hold file. After logging in, the
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user can control expiry of the session as instructed by messages in the ssh session.
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When the timeout of a session is near the user is informed about this with messages
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in the shell.
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</p>
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</div>
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}
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39
pkg/templates/downloads.templ
Normal file
39
pkg/templates/downloads.templ
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@ -0,0 +1,39 @@
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package templates
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templ Downloads() {
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<div>
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<h1 id="downloads">Downloads</h1>
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<table class="table">
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<thead>
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<tr>
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<th>Component</th>
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<th>Purpose</th>
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<th>Linux</th>
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<th>Windows</th>
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</tr>
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</thead>
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<tr>
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<td>agent</td>
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<td>The agent to run inside aa CI job</td>
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<td><a href="docs/agent">agent</a></td>
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<td><a href="docs/agent.exe">agent.exe</a></td>
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</tr>
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<tr>
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<td>wsproxy</td>
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<td>SSH proxy command that can be directly used by ssh</td>
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<td><a href="docs/wsproxy">wsproxy</a></td>
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<td><a href="docs/wsproxy.exe">wsproxy.exe</a></td>
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</tr>
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<tr>
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<td>tcptows</td>
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<td>TCP to WS tunnel for allowing regular
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SSH and SFTP clients to connect to converge</td>
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<td><a href="docs/tcptows">tcptows</a></td>
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<td><a href="docs/tcptows.exe">tcptows.exe</a></td>
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</tr>
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</table>
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</div>
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}
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@ -18,194 +18,10 @@ templ Index(secure string, host string, username string) {
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<div class="container-fluid">
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<div class="row">
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<div class="col">
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<div class="container">
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<h1>About</h1>
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<p>
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Converge is a utility for troubleshooting builds on continuous integration servers.
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It solves a common problem where the cause of job failure is difficult to determine.
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This is complicated further by the fact that build jobs are usually run on a build
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farm where there is no access to the build agents or in more modern envrionments when
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jobs are run in ephemeral containers.
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</p>
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<p>
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With Converge it is possible to get remote shell access to such jobs. This works
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by configuring the build job to connect to a Converge server using an agent program.
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The agent program can be downloaded from within the CI job using curl or wget.
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Next, an end-user can connect to the Converge server, a rendez-vous server, that connects
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the client and server together.
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</p>
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<p>
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The setup is such that the connection from client (end-user) to server (agent on CI job)
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is end-to-end encrypted. The Converge server itself is no more than a bitpipe which pumps
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data between client and agent.
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</p>
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<p>
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Both ssh and sftp are supported. Multiple shells are also allowed.
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</p>
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<p>
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There is a timeout mechanism in the agent such that jobs do not hang indefinitely
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waiting for a connection. This mechanism is useful to make sure build agents do not keep
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build agents occupied for a long time. By default, the agent exits with status 0 when
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the first client exits after logging in. This behavior as well as general expiry can be
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controlled from within a shell session by touching a .hold file. After logging in, the
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user can control expiry of the session as instructed by messages in the ssh session.
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When the timeout of a session is near the user is informed about this with messages
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in the shell.
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</p>
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<h1>Usage</h1>
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<h2>Continuous integration jobs</h2>
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<p>
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In a
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continuous integration job, download the agent, chmod it and run it.
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</p>
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<pre>{`
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# linux
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`}curl http{secure}://{host}/docs/agent > agent{`
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chmod 755 agent
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`}./agent --id ID ws{secure}://{host}{`
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# windows
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`}curl http{secure}://{host}/docs/agent.exe > agent.exe{`
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`}agent --id ID ws{secure}://{host}{`
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`}</pre>
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<p>
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Above, ID is a unique id for the job, the so-called rendez-cous ID. This should not conflict with IDs
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used by other agents. The ID is used for a rendez-vous between the end-user on a local system and
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the continuous integration job running on a build agent. If you don't specify an id, a random
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id will be generated.
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The agent to the converge server and tells it the ID. Clients can now connect to the Converge
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server to establish a connection to the CI job through converge by also specifying the same
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ID.
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Communication between
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end-user and agent is encrypted using SSH and the rendez-vous server is unable to
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read the contents. The rendez-vous server is nothing more then a glorified bit pipe,
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simply transferring data between end-user SSH client and the agent which runs an
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embedded SSH server.
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</p>
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<p>
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NOTE: When running the agent on windows, an exit of the remote session using
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exit in powershell or command prompt does not terminate the shell completely.
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To terminate the client ssh session must be killed by closing the terminal.
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Cleanup of remote processes on the agent appears to work properly despite this
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problem. It is just that exit of the windows shell (powershell or command prompt)
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is not detected properly.
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</p>
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<p>
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The agent has more options, download the agent and run it without arguments to
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see all options.
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</p>
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<h2>Local clients: using ssh with a proxy command </h2>
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<p><code>wsproxy</code> is a command that can be used as a proxy command for SSH which performs the connection to the
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remote server. This command needs to be downloaded only once (see <a href="#downloads">downloads</a> below). It does not depend on
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the converge implementation but only on the websocket standards. Other tools that
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provide a mapping of stdio to a websocket can also be used instead of wsproxy.
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</p>
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<p>
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Next step is to run a local SSH or SFTP client:
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</p>
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<pre>
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{`
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`}ssh -oServerAliveInterval=10 -oProxyCommand="wsproxy ws{secure}://{host}/client/ID" { username }{"@localhost"} {`
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`}sftp -oServerAliveInterval=10 -oProxyCommand="wsproxy ws{secure}://{host}/client/ID" { username }{"@localhost"} {`
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`}</pre>
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<h2>Local clients: using SSH with a local TCP forwarding proxy</h2>
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<p>
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This option is less convenient than the proxy command because it requires two separate
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commands to execute.
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</p>
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<p>
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Local clients can connect using regular ssh and sftp commands through a tunnel that
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translates a local TCP port to a websocket connection in converge. See
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the <a href="#downloads">downloads</a> section.
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This runs a local client that allows SSH to port 10000 and connects to converge using
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a websocket connection.
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</p>
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<p>
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Next step is to run a local SSH of SFTP client:
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</p>
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<pre> {`
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`}ssh -oServerAliveInterval=10 -p 10000 { username }{"@localhost"} {`
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`}sftp -oServerAliveInterval=10 -oPort=10000 { username }{"@localhost"} {`
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`}</pre>
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<h2>Authentication</h2>
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<p>
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The <code>{ username }</code> user above the Converge server and
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communicated to the agent when the agent is started. This is the
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username that must be used when setting up an ssh connection.
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Another way to authenticate is through an .authorized_keys file in the
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same directory as where the agent is started.
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This can be setup as follows before starting the agent:
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</p>
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<pre> {`
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`}# linux {`
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`}echo "ssh-rsa dkddkdkkk a@b.c" > .authorized_keys {`
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`}echo "ssh-rsa adfadjfdf d@e.f" >> .authorized_keys {`
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`} {`
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`}# windows {`
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`}echo ssh-rsa dkddkdkkk a@b.c > .authorized_keys {`
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`}echo ssh-rsa adfadjfdf d@e.f >> .authorized_keys
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</pre>
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<p>
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Note that on windows you should not used quotes.
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</p>
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<h1 id="downloads">Downloads</h1>
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<table class="table">
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<thead>
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<tr>
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<th>Component</th>
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<th>Purpose</th>
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<th>Linux</th>
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<th>Windows</th>
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</tr>
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</thead>
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<tr>
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<td>agent</td>
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<td>The agent to run inside aa CI job</td>
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<td><a href="/docs/agent">agent</a></td>
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<td><a href="/docs/agent.exe">agent.exe</a></td>
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</tr>
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<tr>
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<td>wsproxy</td>
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<td>SSH proxy command that can be directly used by ssh</td>
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<td><a href="/docs/wsproxy">wsproxy</a></td>
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<td><a href="/docs/wsproxy.exe">wsproxy.exe</a></td>
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</tr>
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<tr>
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<td>tcptows</td>
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<td>TCP to WS tunnel for allowing regular
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SSH and SFTP clients to connect to converge</td>
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<td><a href="/docs/tcptows">tcptows</a></td>
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<td><a href="/docs/tcptows.exe">tcptows.exe</a></td>
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</tr>
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</table>
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@About()
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@Usage(secure, host, username)
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@Downloads()
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</div>
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</div>
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</div>
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122
pkg/templates/usage.templ
Normal file
122
pkg/templates/usage.templ
Normal file
@ -0,0 +1,122 @@
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package templates
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templ Usage(secure string, host string, username string) {
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<div>
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<h1>Usage</h1>
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|
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<h2>Continuous integration jobs</h2>
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|
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<p>
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In a
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continuous integration job, download the agent, chmod it and run it.
|
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</p>
|
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<pre>{`
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# linux
|
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`}curl http{secure}://{host}/docs/agent > agent{`
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chmod 755 agent
|
||||
`}./agent --id ID ws{secure}://{host}{`
|
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|
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# windows
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`}curl http{secure}://{host}/docs/agent.exe > agent.exe{`
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`}agent --id ID ws{secure}://{host}{`
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`}</pre>
|
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<p>
|
||||
Above, ID is a unique id for the job, the so-called rendez-cous ID. This should not conflict with IDs
|
||||
used by other agents. The ID is used for a rendez-vous between the end-user on a local system and
|
||||
the continuous integration job running on a build agent. If you don't specify an id, a random
|
||||
id will be generated.
|
||||
|
||||
The agent to the converge server and tells it the ID. Clients can now connect to the Converge
|
||||
server to establish a connection to the CI job through converge by also specifying the same
|
||||
ID.
|
||||
|
||||
Communication between
|
||||
end-user and agent is encrypted using SSH and the rendez-vous server is unable to
|
||||
read the contents. The rendez-vous server is nothing more then a glorified bit pipe,
|
||||
simply transferring data between end-user SSH client and the agent which runs an
|
||||
embedded SSH server.
|
||||
</p>
|
||||
|
||||
<p>
|
||||
NOTE: When running the agent on windows, an exit of the remote session using
|
||||
exit in powershell or command prompt does not terminate the shell completely.
|
||||
To terminate the client ssh session must be killed by closing the terminal.
|
||||
Cleanup of remote processes on the agent appears to work properly despite this
|
||||
problem. It is just that exit of the windows shell (powershell or command prompt)
|
||||
is not detected properly.
|
||||
</p>
|
||||
|
||||
<p>
|
||||
The agent has more options, download the agent and run it without arguments to
|
||||
see all options.
|
||||
</p>
|
||||
|
||||
<h2>Local clients: using ssh with a proxy command </h2>
|
||||
|
||||
<p><code>wsproxy</code> is a command that can be used as a proxy command for SSH which performs the connection to the
|
||||
remote server. This command needs to be downloaded only once (see <a href="#downloads">downloads</a> below). It does not depend on
|
||||
the converge implementation but only on the websocket standards. Other tools that
|
||||
provide a mapping of stdio to a websocket can also be used instead of wsproxy.
|
||||
</p>
|
||||
<p>
|
||||
Next step is to run a local SSH or SFTP client:
|
||||
</p>
|
||||
|
||||
<pre>
|
||||
{`
|
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`}ssh -oServerAliveInterval=10 -oProxyCommand="wsproxy ws{secure}://{host}/client/ID" { username }{"@localhost"} {`
|
||||
`}sftp -oServerAliveInterval=10 -oProxyCommand="wsproxy ws{secure}://{host}/client/ID" { username }{"@localhost"} {`
|
||||
`}</pre>
|
||||
|
||||
<h2>Local clients: using SSH with a local TCP forwarding proxy</h2>
|
||||
|
||||
<p>
|
||||
This option is less convenient than the proxy command because it requires two separate
|
||||
commands to execute.
|
||||
</p>
|
||||
|
||||
<p>
|
||||
Local clients can connect using regular ssh and sftp commands through a tunnel that
|
||||
translates a local TCP port to a websocket connection in converge. See
|
||||
the <a href="#downloads">downloads</a> section.
|
||||
This runs a local client that allows SSH to port 10000 and connects to converge using
|
||||
a websocket connection.
|
||||
</p>
|
||||
|
||||
|
||||
<p>
|
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Next step is to run a local SSH of SFTP client:
|
||||
</p>
|
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|
||||
<pre> {`
|
||||
`}ssh -oServerAliveInterval=10 -p 10000 { username }{"@localhost"} {`
|
||||
`}sftp -oServerAliveInterval=10 -oPort=10000 { username }{"@localhost"} {`
|
||||
`}</pre>
|
||||
|
||||
<h2>Authentication</h2>
|
||||
|
||||
<p>
|
||||
The <code>{ username }</code> user above the Converge server and
|
||||
communicated to the agent when the agent is started. This is the
|
||||
username that must be used when setting up an ssh connection.
|
||||
Another way to authenticate is through an .authorized_keys file in the
|
||||
same directory as where the agent is started.
|
||||
|
||||
This can be setup as follows before starting the agent:
|
||||
</p>
|
||||
<pre> {`
|
||||
`}# linux {`
|
||||
`}echo "ssh-rsa dkddkdkkk a@b.c" > .authorized_keys {`
|
||||
`}echo "ssh-rsa adfadjfdf d@e.f" >> .authorized_keys {`
|
||||
`} {`
|
||||
`}# windows {`
|
||||
`}echo ssh-rsa dkddkdkkk a@b.c > .authorized_keys {`
|
||||
`}echo ssh-rsa adfadjfdf d@e.f >> .authorized_keys
|
||||
</pre>
|
||||
<p>
|
||||
Note that on windows you should not used quotes.
|
||||
</p>
|
||||
|
||||
</div>
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user