{
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   "metadata": {},
   "source": [
    "# Setting up Docker for FastAPI and Jenkins CI-CD on Gentoo\n",
    "\n",
    "## Prerequisites:\n",
    "- Docker\n",
    "- Jenkins\n",
    "- FastAPI\n",
    "\n",
    "## Preparations.\n",
    "\n",
    "\n",
    "Create directory for your stuff, call it tech_project, enter it."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "4d35806b-a9f8-43b0-82fd-b9a669295562",
   "metadata": {},
   "outputs": [],
   "source": [
    "$ mkdir tech_project && cd tech_project"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "bdfd8575-625f-488b-aec3-73ce987086d2",
   "metadata": {},
   "source": [
    "Create virtual Python environment:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "42b86b21-ffa1-4d22-af97-a130b76e04d0",
   "metadata": {},
   "outputs": [],
   "source": [
    "$ python -m venv venv"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "ba4a8e5c-5e31-4e67-9c8f-17c75b52f5e2",
   "metadata": {},
   "outputs": [],
   "source": [
    "You can activate it now with:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "edaeb7c2-f19a-4a6b-bb5f-4c5fd93dcf60",
   "metadata": {},
   "outputs": [],
   "source": [
    "$ source venv/bin/activate"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "8ebfbc06-03a0-4380-a9aa-970aafdbde75",
   "metadata": {},
   "outputs": [],
   "source": [
    "(venv) - That's what should prepend your prompt now."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "bb6d9596-a6fd-4127-a626-e63851a3e38f",
   "metadata": {},
   "source": [
    "Create a requirements.txt file, check which versions of fastapi and pydantic you have and use those:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "a199797a-73ea-4015-b58f-e87ead2ea3f0",
   "metadata": {},
   "outputs": [],
   "source": [
    "fastapi>=0.111\n",
    "pydantic>=2.7.3\n",
    "uvicorn>=0.30.1"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "25c4e82b-0685-400e-9f40-c171deefcc1f",
   "metadata": {},
   "source": [
    "Create a Dockerfile:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "237c5063-5370-4be7-8e29-e0e9802077e6",
   "metadata": {},
   "outputs": [],
   "source": [
    "FROM python:3.12\n",
    "WORKDIR app/ .\n",
    "COPY requirements.txt .\n",
    "RUN pip install --no-cache-dir -r requirements.txt\n",
    "CMD [\"python\", \"main.py\"]"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "e2b41ff9-c9d3-4a84-bb22-0494990ef272",
   "metadata": {},
   "source": [
    "Start docker service (as root):"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "37b1ef3f-8ed1-4c40-9ce9-5e88843356f9",
   "metadata": {},
   "outputs": [],
   "source": [
    "# rc-service docker start"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "7df0e4c5-20f2-4367-be36-e43617dab0ed",
   "metadata": {},
   "source": [
    "Build docker image:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "1220f1b3-1b2c-4bba-a51f-54bd1401b1ec",
   "metadata": {},
   "outputs": [],
   "source": [
    "$ docker build -t fastapi_tech_blog ."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "36881148-8ff4-48e6-80d9-8c53a05bb90b",
   "metadata": {},
   "source": [
    "Watch if warn you and build:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "c962a037-75ef-4b22-b46a-f24da4994be4",
   "metadata": {},
   "outputs": [],
   "source": [
    "WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv\n",
    " ---> Removed intermediate container bb903c49b10d\n",
    " ---> 2a71d86268fd\n",
    "Step 5/7 : COPY . .\n",
    " ---> 9fdcdd3d46cb\n",
    "Step 6/7 : EXPOSE 8000\n",
    " ---> Running in e63e0e7b3ccc\n",
    " ---> Removed intermediate container e63e0e7b3ccc\n",
    " ---> 72d0d9f39af7\n",
    "Step 7/7 : CMD [\"python\", \"main.py\"]\n",
    " ---> Running in b49bc996f993\n",
    " ---> Removed intermediate container b49bc996f993\n",
    " ---> fb426f2a7e15\n",
    "Successfully built fb426f2a7e15\n",
    "Successfully tagged fastapi_tech_blog:latest"
   ]
  }
 ],
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