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4b07aaf 85b7ac8 a7caaff 85b7ac8 4b07aaf 85b7ac8 4b07aaf 85b7ac8 4b07aaf 85b7ac8 4b07aaf 85b7ac8 4b07aaf 85b7ac8 4b07aaf 85b7ac8 4b07aaf | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 | """Task 2: Dockerfile Runtime Errors — MEDIUM.
Agent fixes Dockerfiles that build successfully but fail at container
runtime: missing WORKDIR, CMD/ENTRYPOINT conflicts, permission issues,
and missing environment variables.
"""
from server.models import TaskDifficulty
from server.tasks.base import BaseTask
class DockerfileRuntimeTask(BaseTask):
NAME = "Dockerfile Runtime Errors"
DESCRIPTION = "Fix runtime/container execution issues in Dockerfiles"
DIFFICULTY = TaskDifficulty.MEDIUM
AVAILABLE_SECRETS = []
SCENARIOS = [
# Scenario 1: Missing WORKDIR — node module resolution fails at runtime
{
"id": "missing_workdir",
"files": [
{
"path": "Dockerfile",
"type": "dockerfile",
"content": (
"FROM node:18-alpine\n"
"COPY package*.json ./\n"
"RUN npm ci\n"
"COPY . .\n"
'CMD ["npm", "start"]'
),
},
{
"path": "package.json",
"type": "other",
"content": '{"name": "app", "scripts": {"start": "node index.js"}}',
},
],
"error": {
"phase": "docker_run",
"message": "Error: Cannot find module '/package.json'",
"exit_code": 1,
"failed_step": "npm start",
},
"expected_fixes": [
{
"file": "Dockerfile",
"type": "contains",
"expected": "WORKDIR /app",
"hint": "Set a working directory before COPY/RUN so files land in /app, not /",
}
],
},
# Scenario 2: CMD and ENTRYPOINT both defined as full exec forms — conflict
{
"id": "cmd_entrypoint_conflict",
"files": [
{
"path": "Dockerfile",
"type": "dockerfile",
"content": (
"FROM python:3.11-slim\n"
"WORKDIR /app\n"
"COPY . .\n"
"RUN pip install -r requirements.txt\n"
'ENTRYPOINT ["python", "server.py"]\n'
'CMD ["python", "server.py"]'
),
},
{
"path": "requirements.txt",
"type": "requirements",
"content": "flask==2.3.0",
},
],
"error": {
"phase": "docker_run",
"message": (
"container exits immediately; process started twice — "
"ENTRYPOINT and CMD both specify the full command"
),
"exit_code": 1,
"failed_step": "container start",
},
"expected_fixes": [
{
"file": "Dockerfile",
"type": "not_contains",
"expected": 'CMD ["python", "server.py"]',
"hint": (
"When using ENTRYPOINT as a full command, CMD should provide "
"default arguments only, or be removed entirely"
),
}
],
},
# Scenario 3: Entrypoint script not executable
{
"id": "entrypoint_not_executable",
"files": [
{
"path": "Dockerfile",
"type": "dockerfile",
"content": (
"FROM python:3.11-slim\n"
"WORKDIR /app\n"
"COPY . .\n"
"RUN pip install -r requirements.txt\n"
'ENTRYPOINT ["./start.sh"]'
),
},
{
"path": "requirements.txt",
"type": "requirements",
"content": "flask==2.3.0",
},
{
"path": "start.sh",
"type": "other",
"content": "#!/bin/bash\npython app.py",
},
],
"error": {
"phase": "docker_run",
"message": "exec ./start.sh: permission denied",
"exit_code": 126,
"failed_step": "ENTRYPOINT ./start.sh",
},
"expected_fixes": [
{
"file": "Dockerfile",
"type": "contains",
"expected": "RUN chmod +x ./start.sh",
"hint": "The entrypoint script must be made executable with chmod +x before the ENTRYPOINT instruction",
}
],
},
# Scenario 4: App crashes because a required ENV variable is missing
{
"id": "missing_required_env",
"files": [
{
"path": "Dockerfile",
"type": "dockerfile",
"content": (
"FROM python:3.11-slim\n"
"WORKDIR /app\n"
"COPY . .\n"
"RUN pip install -r requirements.txt\n"
"EXPOSE 8080\n"
'CMD ["python", "app.py"]'
),
},
{
"path": "requirements.txt",
"type": "requirements",
"content": "flask==2.3.0\ngunicorn==21.2.0",
},
],
"error": {
"phase": "docker_run",
"message": (
"KeyError: 'DATABASE_URL'\n"
"Application requires DATABASE_URL environment variable to be set"
),
"exit_code": 1,
"failed_step": "python app.py",
},
"expected_fixes": [
{
"file": "Dockerfile",
"type": "contains",
"expected": "ENV DATABASE_URL",
"hint": "Add an ENV instruction to set DATABASE_URL (use a default or placeholder value)",
}
],
},
# Scenario 5: Non-root user can't bind to privileged port
{
"id": "non_root_privileged_port",
"files": [
{
"path": "Dockerfile",
"type": "dockerfile",
"content": (
"FROM python:3.11-slim\n"
"WORKDIR /app\n"
"COPY . .\n"
"RUN pip install -r requirements.txt\n"
"RUN useradd --create-home appuser\n"
"USER appuser\n"
"EXPOSE 80\n"
'CMD ["python", "app.py"]'
),
},
{
"path": "requirements.txt",
"type": "requirements",
"content": "flask==2.3.0",
},
],
"error": {
"phase": "docker_run",
"message": (
"PermissionError: [Errno 13] Permission denied — "
"non-root user cannot bind to port 80"
),
"exit_code": 1,
"failed_step": "python app.py",
},
"expected_fixes": [
{
"file": "Dockerfile",
"type": "contains",
"expected": "EXPOSE 8080",
"hint": "Non-root users cannot bind to ports below 1024 — use a higher port like 8080",
}
],
},
]
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