titiler.application.main:app returning from "cog/{TileMatrixSetId}/tilejson.json" route

[mthsdiniz-usp]

Hello all,

I've deployed a simple titiler application but when using the tilejson route my "tiles" URL is being returned with "HTTP" instead of "HTTPS". It seems the official deployment has nginx running to make sure everything returned is "HTTPS", but is there any environment variable i can set to force titiler to always return "HTTPS" links?

I'm gonna post both my dockerfile and my main.py here

Dockerfile

# Stage 1: Builder Stage - Install build dependencies and Python packages
FROM python:3.11-slim-bookworm AS builder

# Set environment variables for pip and python
ENV PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=off \
    # Set DEBIAN_FRONTEND to noninteractive to avoid prompts during apt-get install
    DEBIAN_FRONTEND=noninteractive

RUN apt-get update && \
    apt-get install -y --no-install-recommends \
        build-essential \
        libgdal-dev \
        g++ \
    # Clean up apt cache
    && apt-get clean && \
    rm -rf /var/lib/apt/lists/*

# Create and activate a virtual environment
RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

# Upgrade pip and install wheel (recommended)
# Upgrading setuptools addresses CVE-2024-6345
RUN pip install --upgrade pip wheel

# Copy requirements file
COPY requirements.txt .

RUN pip install --no-cache-dir -r requirements.txt

RUN pip install --force-reinstall setuptools==78.1.0

# ---

# Stage 2: Final Stage - Install only runtime dependencies and copy application
FROM python:3.11-slim-bookworm

# Set environment variables for Python and the virtual environment
ENV PYTHONUNBUFFERED=1 \
    VIRTUAL_ENV=/opt/venv \
    PATH="/opt/venv/bin:$PATH" \
    # Set DEBIAN_FRONTEND to noninteractive
    DEBIAN_FRONTEND=noninteractive

RUN apt-get update && \
    apt-get install -y --no-install-recommends \
        libgdal32 \
        libjpeg62-turbo \
        libpng16-16 \
        ca-certificates \
        # nginx \ 
    # Clean up apt cache
    && apt-get clean && \
    rm -rf /var/lib/apt/lists/*

RUN apt-get -y remove libhdf5-103-1 libhdf5-hl-100 libldap-2.5-0 libpoppler126 libaom3 libde265-0 libopenjp2-7 liburiparser1 libtiff6

RUN pip install --force-reinstall setuptools==78.1.0

# Copy the virtual environment with installed packages from the builder stage
COPY --from=builder /opt/venv /opt/venv

# Create a non-root user to run the application
RUN useradd --create-home appuser
USER appuser

WORKDIR /app

COPY --chown=appuser:appuser ./app /app

ENV HOST 0.0.0.0
ENV PORT 80
CMD uvicorn main:app --host ${HOST} --port ${PORT}

main.py

from fastapi import Depends

from titiler.application.main import app
from titiler.core.factory import TilerFactory
from titiler.mosaic.factory import MosaicTilerFactory
from titiler.extensions import (
    cogValidateExtension,
    cogViewerExtension,
    stacExtension,
    stacViewerExtension,
)
from titiler.core.errors import BadRequestError
from cogeo_mosaic.mosaic import MosaicJSON
from cogeo_mosaic.utils import get_footprints
from titiler.core.errors import DEFAULT_STATUS_CODES, add_exception_handlers

from dataclasses import dataclass
from typing import List, Optional

from pydantic import BaseModel

from cache import setup_cache
from routes import cog, mosaic, scene_tiler, mosaic_s2_tiler

# Setup Cache on Startup
app.add_event_handler("startup", setup_cache)
add_exception_handlers(app, DEFAULT_STATUS_CODES)

#app.include_router(cog.router, prefix="/cog", tags=["Cloud Optimized GeoTIFF"])
#app.include_router(mosaic.router, prefix="/mosaicjsoncustom", tags=["MosaicJSON-custom"])

app.include_router(scene_tiler.router, prefix="/s2_scenes", tags=["scenes"])
app.include_router(mosaic_s2_tiler.router, prefix="/s2_mosaic", tags=["S2 Mosaic"])

[vincentsarago]

#969

[mthsdiniz-usp]

#969

Hey Vincent, all solutions seems to rely on Nginx.

Is there a workaround to use titiler.application.main:app directly?

my idea is to delete my main.py and set the last CMD as:

CMD uvicorn titiler.application.main:app --reload --host ${HOST} --port ${PORT}

Thanks!

[vincentsarago]

https://medium.com/@mariovanrooij/adding-https-to-fastapi-ad5e0f9e084e