experiment with ssh #572
experiment with ssh #572
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📝 WalkthroughWalkthroughAdds an SSH test container (Dockerfile, docker-compose, README) for running an OpenSSH server and a detailed Remote Workspace Agent design doc describing RPC proxies, SSH transport, agent deployment, package layout, and implementation phases. Changes
Sequence Diagram(s)sequenceDiagram
autonumber
participant Desktop as Desktop App
participant Provider as Ops Provider
participant SSH as SSH Transport
participant Agent as Remote Agent
participant RPC as RPC Server
participant FS as Remote Filesystem
rect rgba(200,230,255,0.25)
Desktop->>Provider: request operation (e.g., readFile)
Provider->>Provider: decide local vs remote
end
alt Remote chosen
rect rgba(220,255,220,0.18)
Provider->>SSH: open connection & authenticate
SSH->>Agent: establish channel / forward RPC
Agent->>RPC: forward RPC call
RPC->>FS: perform file access
FS-->>RPC: return file content
RPC-->>Agent: RPC response
Agent-->>SSH: send response over transport
SSH-->>Provider: deliver response
Provider-->>Desktop: return result
end
else Local chosen
Provider-->>Desktop: invoke local implementation
end
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~25 minutes Poem
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✅ Passed checks (1 passed)
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Actionable comments posted: 2
🧹 Nitpick comments (3)
ssh-test-container/docker-compose.yml (1)
8-10: Simplify key-based authentication setup.The commented approach of mounting
~/.ssh/id_rsa.pubasauthorized_keysis functional but requires users to uncomment, rebuild, and understand file permissions. The manual setup documented in the README (lines 64-68) is complex and error-prone.Consider providing a startup script that automatically copies keys if present, making the workflow smoother.
🔎 Alternative approach with an entrypoint script
Add an entrypoint script to the Dockerfile:
COPY entrypoint.sh /entrypoint.sh RUN chmod +x /entrypoint.sh ENTRYPOINT ["/entrypoint.sh"] CMD ["/usr/sbin/sshd", "-D"]Create
entrypoint.sh:#!/bin/bash # Copy authorized_keys if provided via volume if [ -f /tmp/authorized_keys ]; then cp /tmp/authorized_keys /home/testuser/.ssh/authorized_keys chown testuser:testuser /home/testuser/.ssh/authorized_keys chmod 600 /home/testuser/.ssh/authorized_keys fi exec "$@"Update docker-compose.yml:
volumes: - ~/.ssh/id_rsa.pub:/tmp/authorized_keys:ro - ./workspace:/home/testuser/workspacessh-test-container/README.md (2)
63-68: Simplify key-based authentication setup.The manual setup requires users to execute three separate
dockercommands with correct permissions. This is error-prone and could be streamlined with better tooling or documentation.Consider adding a setup script or improving the docker-compose workflow as suggested in the docker-compose.yml review comments. Alternatively, document the uncomment approach more clearly:
## Key-Based Auth Setup **Option 1: Using docker-compose (recommended)** 1. Uncomment the authorized_keys volume mount in `docker-compose.yml` 2. Rebuild: `docker-compose up -d --build` **Option 2: Manual setup** ```bash docker cp ~/.ssh/id_rsa.pub superset-ssh-test:/home/testuser/.ssh/authorized_keys docker exec superset-ssh-test chown testuser:testuser /home/testuser/.ssh/authorized_keys docker exec superset-ssh-test chmod 600 /home/testuser/.ssh/authorized_keys--- `70-77`: **Add security warning to connection details.** The connection details clearly show the password, which is appropriate for documentation. However, consider adding a prominent security warning that this container should only be used in isolated development environments and never exposed to public networks. <details> <summary>🔎 Suggested addition</summary> ```diff ## Connection Details + +> ⚠️ **Security Warning**: This container uses a hardcoded password and should only be used in isolated development environments. Never expose port 2222 to untrusted networks. | Field | Value |
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ssh-test-container/Dockerfilessh-test-container/README.mdssh-test-container/docker-compose.yml
🧰 Additional context used
🪛 Checkov (3.2.334)
ssh-test-container/Dockerfile
[medium] 15-17: Ensure that 'chpasswd' is not used to set or remove passwords
(CKV2_DOCKER_17)
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🔇 Additional comments (3)
ssh-test-container/Dockerfile (2)
23-26: LGTM! Correct permissions for .ssh directory.The
.sshdirectory is properly configured with mode 700 and correct ownership, which is essential for SSH key-based authentication to work.
19-21: The sed patterns will match Ubuntu 22.04's default sshd_config—no changes needed.The commented-out lines
#PasswordAuthentication yesand#PermitRootLogin prohibit-passwordare present in Ubuntu 22.04's default/etc/ssh/sshd_config, so the sed commands will work correctly and not fail silently.Note: Ubuntu 22.04 also loads additional config from
/etc/ssh/sshd_config.d/*.confvia theIncludedirective. If any of those files override these settings (e.g., cloud-init's50-cloud-init.conf), the sed changes to the main config may be masked, though this is unlikely to be an issue in a test container context.Likely an incorrect or invalid review comment.
ssh-test-container/docker-compose.yml (1)
11-11: LGTM! Appropriate restart policy for a test container.The
unless-stoppedrestart policy is suitable for a development/testing environment.
| # Create a test user (password: test) | ||
| RUN useradd -m -s /bin/bash testuser && \ | ||
| echo 'testuser:test' | chpasswd && \ | ||
| usermod -aG sudo testuser |
There was a problem hiding this comment.
Consider documenting the security implications of the hardcoded password.
The hardcoded password "test" is weak and exposes the container to unauthorized access if the port is accidentally exposed to untrusted networks. While acceptable for local testing, consider adding a prominent comment warning that this container should only be used in isolated development environments.
Regarding the Checkov warning about chpasswd usage: For a test container, this approach is acceptable, though you might want to add a comment acknowledging this is intentionally simplified for testing purposes.
🔎 Suggested improvement
-# Create a test user (password: test)
+# Create a test user (password: test)
+# WARNING: This is a test container only. Do not expose port 2222 to untrusted networks.
RUN useradd -m -s /bin/bash testuser && \
echo 'testuser:test' | chpasswd && \
usermod -aG sudo testuser📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| # Create a test user (password: test) | |
| RUN useradd -m -s /bin/bash testuser && \ | |
| echo 'testuser:test' | chpasswd && \ | |
| usermod -aG sudo testuser | |
| # Create a test user (password: test) | |
| # WARNING: This is a test container only. Do not expose port 2222 to untrusted networks. | |
| RUN useradd -m -s /bin/bash testuser && \ | |
| echo 'testuser:test' | chpasswd && \ | |
| usermod -aG sudo testuser |
🧰 Tools
🪛 Checkov (3.2.334)
[medium] 15-17: Ensure that 'chpasswd' is not used to set or remove passwords
(CKV2_DOCKER_17)
🤖 Prompt for AI Agents
In ssh-test-container/Dockerfile around lines 14 to 17, the Dockerfile creates a
test user with a hardcoded weak password which poses a security risk and
triggers Checkov warnings; add a prominent comment above these lines warning
that this password is intentionally weak and the image is for isolated local
development only, note that chpasswd usage is intentional for testing (to
silence/annotate the Checkov finding), and suggest best-practice alternatives
(e.g., use environment-injected secrets, SSH key auth, or limit exposure by
binding SSH to localhost or not exposing the port) so reviewers know this is
deliberately simplified and should not be used in production.
| ### Dockerfile | ||
| ```dockerfile | ||
| FROM ubuntu:22.04 | ||
|
|
||
| RUN apt-get update && apt-get install -y \ | ||
| openssh-server \ | ||
| git \ | ||
| curl \ | ||
| vim \ | ||
| sudo \ | ||
| && rm -rf /var/lib/apt/lists/* | ||
|
|
||
| # Create SSH directory and configure | ||
| RUN mkdir /var/run/sshd | ||
|
|
||
| # Create a test user (password: test) | ||
| RUN useradd -m -s /bin/bash testuser && \ | ||
| echo 'testuser:test' | chpasswd && \ | ||
| usermod -aG sudo testuser | ||
|
|
||
| # Allow password authentication (for easy testing) | ||
| RUN sed -i 's/#PasswordAuthentication yes/PasswordAuthentication yes/' /etc/ssh/sshd_config && \ | ||
| sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin no/' /etc/ssh/sshd_config | ||
|
|
||
| # Create .ssh directory for key-based auth | ||
| RUN mkdir -p /home/testuser/.ssh && \ | ||
| chmod 700 /home/testuser/.ssh && \ | ||
| chown -R testuser:testuser /home/testuser/.ssh | ||
|
|
||
| EXPOSE 22 | ||
|
|
||
| CMD ["/usr/sbin/sshd", "-D"] | ||
| ``` | ||
|
|
||
| ### docker-compose.yml | ||
| ```yaml | ||
| services: | ||
| ssh-server: | ||
| build: . | ||
| container_name: superset-ssh-test | ||
| ports: | ||
| - "2222:22" | ||
| volumes: | ||
| # Uncomment to mount your public key for key-based auth | ||
| # - ~/.ssh/id_rsa.pub:/home/testuser/.ssh/authorized_keys:ro | ||
| - ./workspace:/home/testuser/workspace | ||
| restart: unless-stopped | ||
| ``` |
There was a problem hiding this comment.
🛠️ Refactor suggestion | 🟠 Major
Remove duplicated code from documentation.
Embedding the complete Dockerfile (lines 6-37) and docker-compose.yml (lines 40-52) content creates a maintenance burden. When the actual files are updated, this documentation will become stale and misleading.
🔎 Proposed refactor
Replace lines 3-52 with a brief overview:
-## Files
-
-### Dockerfile
-```dockerfile
-FROM ubuntu:22.04
-...
-```
-
-### docker-compose.yml
-```yaml
-services:
-...
-```
+## Overview
+
+This SSH test container provides a secure testing environment with:
+- Ubuntu 22.04 base image
+- OpenSSH server configured for both password and key-based authentication
+- Test user `testuser` with sudo privileges
+- Exposed on port 2222 for easy local access
+
+See the `Dockerfile` and `docker-compose.yml` files in this directory for complete configuration details.📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| ### Dockerfile | |
| ```dockerfile | |
| FROM ubuntu:22.04 | |
| RUN apt-get update && apt-get install -y \ | |
| openssh-server \ | |
| git \ | |
| curl \ | |
| vim \ | |
| sudo \ | |
| && rm -rf /var/lib/apt/lists/* | |
| # Create SSH directory and configure | |
| RUN mkdir /var/run/sshd | |
| # Create a test user (password: test) | |
| RUN useradd -m -s /bin/bash testuser && \ | |
| echo 'testuser:test' | chpasswd && \ | |
| usermod -aG sudo testuser | |
| # Allow password authentication (for easy testing) | |
| RUN sed -i 's/#PasswordAuthentication yes/PasswordAuthentication yes/' /etc/ssh/sshd_config && \ | |
| sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin no/' /etc/ssh/sshd_config | |
| # Create .ssh directory for key-based auth | |
| RUN mkdir -p /home/testuser/.ssh && \ | |
| chmod 700 /home/testuser/.ssh && \ | |
| chown -R testuser:testuser /home/testuser/.ssh | |
| EXPOSE 22 | |
| CMD ["/usr/sbin/sshd", "-D"] | |
| ``` | |
| ### docker-compose.yml | |
| ```yaml | |
| services: | |
| ssh-server: | |
| build: . | |
| container_name: superset-ssh-test | |
| ports: | |
| - "2222:22" | |
| volumes: | |
| # Uncomment to mount your public key for key-based auth | |
| # - ~/.ssh/id_rsa.pub:/home/testuser/.ssh/authorized_keys:ro | |
| - ./workspace:/home/testuser/workspace | |
| restart: unless-stopped | |
| ``` | |
| ## Overview | |
| This SSH test container provides a secure testing environment with: | |
| - Ubuntu 22.04 base image | |
| - OpenSSH server configured for both password and key-based authentication | |
| - Test user `testuser` with sudo privileges | |
| - Exposed on port 2222 for easy local access | |
| See the `Dockerfile` and `docker-compose.yml` files in this directory for complete configuration details. |
🤖 Prompt for AI Agents
In ssh-test-container/README.md around lines 5 to 52, the README duplicates the
full Dockerfile and docker-compose.yml contents which causes maintenance drift;
remove the embedded Dockerfile and docker-compose.yml blocks and replace them
with a short "Overview" paragraph that lists the key facts (Ubuntu 22.04 base,
OpenSSH server with password/key auth, testuser with sudo, port 2222) and a note
pointing readers to the actual Dockerfile and docker-compose.yml in the
repository for full configuration; ensure any important config highlights remain
in the overview but no full file contents are in the README.
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Actionable comments posted: 1
🧹 Nitpick comments (2)
apps/desktop/docs/REMOTE_WORKSPACE_AGENT.md (2)
37-37: Minor grammatical suggestion: hyphenate compound adjective.Per the static analysis hint, "Zero Friction Development" modifying the following noun should be hyphenated to "Zero-Friction Development" for consistency with English compound adjective conventions.
1722-1733: Use a proper heading instead of emphasis for section labels.Line 1734 uses bold emphasis (e.g.,
**Phase**) for what appears to be a table heading. Consider restructuring to use a proper markdown heading (##) above the table to improve document structure and comply with markdown best practices (MD036).
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Review profile: CHILL
Plan: Pro
📒 Files selected for processing (1)
apps/desktop/docs/REMOTE_WORKSPACE_AGENT.md
🧰 Additional context used
🧠 Learnings (4)
📓 Common learnings
Learnt from: CR
Repo: superset-sh/superset PR: 0
File: apps/desktop/CLAUDE.md:0-0
Timestamp: 2025-11-24T21:32:21.725Z
Learning: Applies to apps/desktop/**/AGENTS.md : Document agent responsibilities, capabilities, and interaction patterns in AGENTS.md
📚 Learning: 2025-11-24T21:32:21.725Z
Learnt from: CR
Repo: superset-sh/superset PR: 0
File: apps/desktop/CLAUDE.md:0-0
Timestamp: 2025-11-24T21:32:21.725Z
Learning: Applies to apps/desktop/**/AGENTS.md : Document agent responsibilities, capabilities, and interaction patterns in AGENTS.md
Applied to files:
apps/desktop/docs/REMOTE_WORKSPACE_AGENT.md
📚 Learning: 2025-11-24T21:32:17.800Z
Learnt from: CR
Repo: superset-sh/superset PR: 0
File: CLAUDE.md:0-0
Timestamp: 2025-11-24T21:32:17.800Z
Learning: Applies to AGENTS.md : Document agent responsibilities and interactions in AGENTS.md
Applied to files:
apps/desktop/docs/REMOTE_WORKSPACE_AGENT.md
📚 Learning: 2025-11-24T21:32:21.725Z
Learnt from: CR
Repo: superset-sh/superset PR: 0
File: apps/desktop/CLAUDE.md:0-0
Timestamp: 2025-11-24T21:32:21.725Z
Learning: Maintain agent documentation including roles, capabilities, and interaction protocols
Applied to files:
apps/desktop/docs/REMOTE_WORKSPACE_AGENT.md
🪛 LanguageTool
apps/desktop/docs/REMOTE_WORKSPACE_AGENT.md
[uncategorized] ~37-~37: If this is a compound adjective that modifies the following noun, use a hyphen.
Context: ...l features work on remote machines 2. Zero Friction Development: Adding new features work...
(EN_COMPOUND_ADJECTIVE_INTERNAL)
🪛 markdownlint-cli2 (0.18.1)
apps/desktop/docs/REMOTE_WORKSPACE_AGENT.md
9-9: Fenced code blocks should have a language specified
(MD040, fenced-code-language)
60-60: Fenced code blocks should have a language specified
(MD040, fenced-code-language)
111-111: Fenced code blocks should have a language specified
(MD040, fenced-code-language)
1232-1232: Fenced code blocks should have a language specified
(MD040, fenced-code-language)
1734-1734: Emphasis used instead of a heading
(MD036, no-emphasis-as-heading)
⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (6)
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🔇 Additional comments (1)
apps/desktop/docs/REMOTE_WORKSPACE_AGENT.md (1)
1-1756: Excellent architectural documentation; verify naming convention alignment.This is comprehensive and well-structured documentation covering the Remote Workspace Agent architecture, design goals, package structure, RPC infrastructure, SSH transport, deployment flow, and developer workflows. The use of diagrams, code examples, and phased implementation guidance is exemplary.
However, the retrieved learnings reference documenting agent patterns in
AGENTS.md, while this file is namedREMOTE_WORKSPACE_AGENT.md. Verify whether this file should follow the learnings convention or if a separateAGENTS.mdfile is planned. If this is the intended agent documentation file, ensure the naming aligns with the codebase's documentation conventions.
There was a problem hiding this comment.
Actionable comments posted: 0
♻️ Duplicate comments (1)
apps/desktop/docs/REMOTE_WORKSPACE_AGENT.md (1)
23-23: Add language specifiers to fenced code blocks.Four code blocks lack language specifiers, which causes markdown linting failures. Add
textto each to specify the block contains ASCII/plaintext diagrams.🔎 Proposed fixes
-``` +```text ┌─────────────────────────────────────────────────────────────────────────────┐ │ SUPERSET DESKTOP │Apply the same fix (change
```to```text) to lines 56, 105, and 257.This matches the prior review feedback; addressing these now ensures clean linter compliance.
Also applies to: 56-56, 105-105, 257-257
🧹 Nitpick comments (1)
apps/desktop/docs/REMOTE_WORKSPACE_AGENT.md (1)
50-50: Simplify "exact same" phrasing.Line 50 uses "exact same," which is more verbose than necessary. Consider "The agent uses the same
localGitOperationsas the desktop app."
📜 Review details
Configuration used: defaults
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (1)
apps/desktop/docs/REMOTE_WORKSPACE_AGENT.md
🧰 Additional context used
🧠 Learnings (3)
📚 Learning: 2025-11-24T21:32:21.725Z
Learnt from: CR
Repo: superset-sh/superset PR: 0
File: apps/desktop/CLAUDE.md:0-0
Timestamp: 2025-11-24T21:32:21.725Z
Learning: Applies to apps/desktop/**/AGENTS.md : Document agent responsibilities, capabilities, and interaction patterns in AGENTS.md
Applied to files:
apps/desktop/docs/REMOTE_WORKSPACE_AGENT.md
📚 Learning: 2025-11-24T21:32:17.800Z
Learnt from: CR
Repo: superset-sh/superset PR: 0
File: CLAUDE.md:0-0
Timestamp: 2025-11-24T21:32:17.800Z
Learning: Applies to AGENTS.md : Document agent responsibilities and interactions in AGENTS.md
Applied to files:
apps/desktop/docs/REMOTE_WORKSPACE_AGENT.md
📚 Learning: 2025-11-24T21:32:21.725Z
Learnt from: CR
Repo: superset-sh/superset PR: 0
File: apps/desktop/CLAUDE.md:0-0
Timestamp: 2025-11-24T21:32:21.725Z
Learning: Maintain agent documentation including roles, capabilities, and interaction protocols
Applied to files:
apps/desktop/docs/REMOTE_WORKSPACE_AGENT.md
🪛 LanguageTool
apps/desktop/docs/REMOTE_WORKSPACE_AGENT.md
[style] ~50-~50: ‘exact same’ might be wordy. Consider a shorter alternative.
Context: ...`` Key insight: The agent uses the exact same localGitOperations as the desktop app...
(EN_WORDINESS_PREMIUM_EXACT_SAME)
🪛 markdownlint-cli2 (0.18.1)
apps/desktop/docs/REMOTE_WORKSPACE_AGENT.md
23-23: Fenced code blocks should have a language specified
(MD040, fenced-code-language)
56-56: Fenced code blocks should have a language specified
(MD040, fenced-code-language)
105-105: Fenced code blocks should have a language specified
(MD040, fenced-code-language)
257-257: Fenced code blocks should have a language specified
(MD040, fenced-code-language)
⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (6)
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- GitHub Check: Build
Description
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Type of Change
Testing
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