re-add paramiko

This reverts commit eb6f515ee0e9ed5196565c79eea9dd5b5cdc7444.

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

Dockerfile

@@ -84,6 +84,8 @@ RUN apt-get update && \
     apt-get install -y --no-install-recommends libxmlsec1-openssl libmaxminddb0 && \
     # Required for bootstrap & healtcheck
     apt-get install -y --no-install-recommends runit && \
+    # Required for outposts
+    apt-get install -y --no-install-recommends openssh-client && \
     pip install --no-cache-dir -r /requirements.txt && \
     apt-get remove --purge -y build-essential pkg-config libxmlsec1-dev && \
     apt-get autoremove --purge -y && \
@@ -91,8 +93,9 @@ RUN apt-get update && \
     rm -rf /tmp/* /var/lib/apt/lists/* /var/tmp/ && \
     adduser --system --no-create-home --uid 1000 --group --home /authentik authentik && \
     mkdir -p /certs /media /blueprints && \
-    mkdir -p /authentik/.ssh && \
+    chown authentik:authentik /certs /media && \
-    chown authentik:authentik /certs /media /authentik/.ssh
+    chmod g+w /etc/ssh/ssh_config.d/ && \
+    chgrp authentik /etc/ssh/ssh_config.d/
 
 COPY ./authentik/ /authentik
 COPY ./pyproject.toml /

authentik/outposts/controllers/docker.py

@@ -1,4 +1,5 @@
 """Docker controller"""
+from subprocess import SubprocessError  # nosec
 from time import sleep
 from typing import Optional
 from urllib.parse import urlparse
@@ -9,7 +10,6 @@ from docker import DockerClient as UpstreamDockerClient
 from docker.errors import DockerException, NotFound
 from docker.models.containers import Container
 from docker.utils.utils import kwargs_from_env
-from paramiko.ssh_exception import SSHException
 from structlog.stdlib import get_logger
 from yaml import safe_dump
 
@@ -58,8 +58,9 @@ class DockerClient(UpstreamDockerClient, BaseClient):
                 super().__init__(
                     base_url=connection.url,
                     tls=tls_config,
+                    use_ssh_client=True,
                 )
-            except SSHException as exc:
+            except SubprocessError as exc:
                 if self.ssh:
                     self.ssh.cleanup()
                 raise ServiceConnectionInvalid(exc) from exc

authentik/outposts/docker_ssh.py

@@ -7,8 +7,7 @@ from docker.errors import DockerException
 
 from authentik.crypto.models import CertificateKeyPair
 
-HEADER = "### Managed by authentik"
+SSH_CONFIG_DIR = Path("/etc/ssh/ssh_config.d/")
-FOOTER = "### End Managed by authentik"
 
 
 def opener(path, flags):
@@ -28,70 +27,54 @@ class DockerInlineSSH:
 
     key_path: str
     config_path: Path
-    header: str
 
     def __init__(self, host: str, keypair: CertificateKeyPair) -> None:
         self.host = host
         self.keypair = keypair
-        self.config_path = Path("~/.ssh/config").expanduser()
+        self.config_path = SSH_CONFIG_DIR / Path(self.host + ".conf")
-        if self.config_path.exists() and HEADER not in self.config_path.read_text(encoding="utf-8"):
+        with open(self.config_path, "w", encoding="utf-8") as _config:
-            # SSH Config file already exists and there's no header from us, meaning that it's
+            if not _config.writable():
-            # been externally mapped into the container for more complex configs
+                # SSH Config file already exists and there's no header from us, meaning that it's
-            raise SSHManagedExternallyException(
+                # been externally mapped into the container for more complex configs
-                "SSH Config exists and does not contain authentik header"
+                raise SSHManagedExternallyException(
-            )
+                    "SSH Config exists and does not contain authentik header"
+                )
         if not self.keypair:
             raise DockerException("keypair must be set for SSH connections")
-        self.header = f"{HEADER} - {self.host}\n"
 
-    def write_config(self, key_path: str) -> bool:
+    def write_config(self, key_path: str):
         """Update the local user's ssh config file"""
-        with open(self.config_path, "a+", encoding="utf-8") as ssh_config:
+        with open(self.config_path, "w", encoding="utf-8") as ssh_config:
-            if self.header in ssh_config.readlines():
-                return False
             ssh_config.writelines(
                 [
-                    self.header,
                     f"Host {self.host}\n",
-                    f"    IdentityFile {key_path}\n",
+                    f"    IdentityFile {str(key_path)}\n",
                     "    StrictHostKeyChecking No\n",
                     "    UserKnownHostsFile /dev/null\n",
-                    f"{FOOTER}\n",
                     "\n",
                 ]
             )
-        return True
 
-    def write_key(self):
+    def write_key(self) -> Path:
         """Write keypair's private key to a temporary file"""
         path = Path(gettempdir(), f"{self.keypair.pk}_private.pem")
         with open(path, "w", encoding="utf8", opener=opener) as _file:
             _file.write(self.keypair.key_data)
-        return str(path)
+        return path
 
     def write(self):
         """Write keyfile and update ssh config"""
         self.key_path = self.write_key()
-        was_written = self.write_config(self.key_path)
+        try:
-        if not was_written:
+            self.write_config(self.key_path)
+        except OSError:
             self.cleanup()
 
     def cleanup(self):
         """Cleanup when we're done"""
         try:
             os.unlink(self.key_path)
-            with open(self.config_path, "r", encoding="utf-8") as ssh_config:
+            os.unlink(self.config_path)
-                start = 0
-                end = 0
-                lines = ssh_config.readlines()
-                for idx, line in enumerate(lines):
-                    if line == self.header:
-                        start = idx
-                    if start != 0 and line == f"{FOOTER}\n":
-                        end = idx
-            with open(self.config_path, "w+", encoding="utf-8") as ssh_config:
-                lines = lines[:start] + lines[end + 2 :]
-                ssh_config.writelines(lines)
         except OSError:
             # If we fail deleting a file it doesn't matter that much
             # since we're just in a container

web/src/admin/outposts/ServiceConnectionListPage.ts

@@ -85,7 +85,7 @@ export class OutpostServiceConnectionListPage extends TablePage<ServiceConnectio
             html`<ak-label color=${item.local ? PFColor.Grey : PFColor.Green}>
                 ${item.local ? t`Yes` : t`No`}
             </ak-label>`,
-            html`${itemState.healthy
+            html`${itemState?.healthy
                 ? html`<ak-label color=${PFColor.Green}>${ifDefined(itemState.version)}</ak-label>`
                 : html`<ak-label color=${PFColor.Red}>${t`Unhealthy`}</ak-label>`}`,
             html` <ak-forms-modal>