394 lines
14 KiB
Markdown
394 lines
14 KiB
Markdown
# openstreetmap-tile-server
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## Champs-libres fork
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This is an adaptation of https://github.com/Overv/openstreetmap-tile-server/ for testing different cartoCss styles and generating tiles.
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### Use with docker compose
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#### Fresh install
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```bash
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#docker volume create osm-data
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docker compose build
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```
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For entering into the container, use the "terminal" argument of the run.sh script:
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```bash
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docker compose run --rm map terminal
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```
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#### Do an import
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Download a pbf and a poly file of your choice on https://download.geofabrik.de and put it in the `pbf` folder. Change the lines of the pbf and poly paths in the volumes in the `docker compose.yml` file
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Then, you can import the OSM data by doing this command:
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```bash
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docker compose run --rm map import
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```
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This will take a while, about 15 min for Luxembourg for example.
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You should end with :
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```
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...
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INFO:root: Importing into database
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INFO:root: Import complete
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+ sudo -u renderer touch /data/database/planet-import-complete
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+ service postgresql stop
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* Stopping PostgreSQL 15 database server [ OK ]
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+ exit 0
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```
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#### Run the server to produce and view tiles
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```bash
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docker compose run --rm map run
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```
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The tiles are available on http://192.168.176.2/ or something like that. Have a look at the docker container to know which is the IP address: there is a message like "Could not reliably determine the server's fully qualified domain name, using 192.168.176.2.". (should be on http://localhost:8080/ though...)
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#### Generate tiles from a list
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There's a script in utils to generate a list of tiles to be used to generate the tiles.
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```bash
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python3 generate-tiles-list.py > tiles.list
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```
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Move this `tiles.list` file in the `/tiles/` directory and then run:
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```bash
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docker compose run --rm map generate_tiles
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```
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For Belgium up to zoom 18, it might take >48 hours!
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NB: use `cat tiles.list | grep " 18" > tiles_18.list` to split the tiles.list per zoom level
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#### Transfer the tiles to tiles.champs-libres.be
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```bash
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rsync --compress --recursive ./tiles/cyclosm debian@juniperus.champs-libres.be:/var/lib/mod_tile/cyclosm
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```
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#### Troubleshooting
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##### Role rendered already exists
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While importing, if you encounter the error "createuser: error: creation of new role failed: ERROR: role "renderer" already exists", it is because the db already exist from a previous import, just remove/rename the `postgres` folder into database.
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## Original README
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[](https://travis-ci.org/Overv/openstreetmap-tile-server) [](https://microbadger.com/images/overv/openstreetmap-tile-server "openstreetmap-tile-server")
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[](https://hub.docker.com/r/overv/openstreetmap-tile-server/tags)
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This container allows you to easily set up an OpenStreetMap PNG tile server given a `.osm.pbf` file. It is based on the [latest Ubuntu 18.04 LTS guide](https://switch2osm.org/serving-tiles/manually-building-a-tile-server-18-04-lts/) from [switch2osm.org](https://switch2osm.org/) and therefore uses the default OpenStreetMap style.
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## Setting up the server
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First create a Docker volume to hold the PostgreSQL database that will contain the OpenStreetMap data:
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docker volume create osm-data
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Next, download an `.osm.pbf` extract from geofabrik.de for the region that you're interested in. You can then start importing it into PostgreSQL by running a container and mounting the file as `/data/region.osm.pbf`. For example:
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```
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docker run \
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-v /absolute/path/to/luxembourg.osm.pbf:/data/region.osm.pbf \
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-v osm-data:/data/database/ \
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overv/openstreetmap-tile-server \
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import
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```
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If the container exits without errors, then your data has been successfully imported and you are now ready to run the tile server.
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Note that the import process requires an internet connection. The run process does not require an internet connection. If you want to run the openstreetmap-tile server on a computer that is isolated, you must first import on an internet connected computer, export the `osm-data` volume as a tarfile, and then restore the data volume on the target computer system.
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Also when running on an isolated system, the default `index.html` from the container will not work, as it requires access to the web for the leaflet packages.
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### Automatic updates (optional)
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If your import is an extract of the planet and has polygonal bounds associated with it, like those from [geofabrik.de](https://download.geofabrik.de/), then it is possible to set your server up for automatic updates. Make sure to reference both the OSM file and the polygon file during the `import` process to facilitate this, and also include the `UPDATES=enabled` variable:
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```
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docker run \
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-e UPDATES=enabled \
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-v /absolute/path/to/luxembourg.osm.pbf:/data/region.osm.pbf \
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-v /absolute/path/to/luxembourg.poly:/data/region.poly \
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-v osm-data:/data/database/ \
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overv/openstreetmap-tile-server \
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import
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```
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Refer to the section *Automatic updating and tile expiry* to actually enable the updates while running the tile server.
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Please note: If you're not importing the whole planet, then the `.poly` file is necessary to limit automatic updates to the relevant region.
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Therefore, when you only have a `.osm.pbf` file but not a `.poly` file, you should not enable automatic updates.
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### Letting the container download the file
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It is also possible to let the container download files for you rather than mounting them in advance by using the `DOWNLOAD_PBF` and `DOWNLOAD_POLY` parameters:
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```
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docker run \
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-e DOWNLOAD_PBF=https://download.geofabrik.de/europe/luxembourg-latest.osm.pbf \
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-e DOWNLOAD_POLY=https://download.geofabrik.de/europe/luxembourg.poly \
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-v osm-data:/data/database/ \
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overv/openstreetmap-tile-server \
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import
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```
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### Using an alternate style
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By default the container will use openstreetmap-carto if it is not specified. However, you can modify the style at run-time. Be aware you need the style mounted at `run` AND `import` as the Lua script needs to be run:
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```
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docker run \
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-e DOWNLOAD_PBF=https://download.geofabrik.de/europe/luxembourg-latest.osm.pbf \
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-e DOWNLOAD_POLY=https://download.geofabrik.de/europe/luxembourg.poly \
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-e NAME_LUA=sample.lua \
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-e NAME_STYLE=test.style \
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-e NAME_MML=project.mml \
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-e NAME_SQL=test.sql \
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-v /home/user/openstreetmap-carto-modified:/data/style/ \
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-v osm-data:/data/database/ \
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overv/openstreetmap-tile-server \
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import
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```
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If you do not define the "NAME_*" variables, the script will default to those found in the openstreetmap-carto style.
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Be sure to mount the volume during `run` with the same `-v /home/user/openstreetmap-carto-modified:/data/style/`
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If you do not see the expected style upon `run` double check your paths as the style may not have been found at the directory specified. By default, `openstreetmap-carto` will be used if a style cannot be found
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**Only openstreetmap-carto and styles like it, eg, ones with one lua script, one style, one mml, one SQL can be used**
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## Running the server
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Run the server like this:
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```
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docker run \
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-p 8080:80 \
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-v osm-data:/data/database/ \
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-d overv/openstreetmap-tile-server \
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run
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```
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Your tiles will now be available at `http://localhost:8080/tile/{z}/{x}/{y}.png`. The demo map in `leaflet-demo.html` will then be available on `http://localhost:8080`. Note that it will initially take quite a bit of time to render the larger tiles for the first time.
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### Using Docker Compose
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The `docker compose.yml` file included with this repository shows how the aforementioned command can be used with Docker Compose to run your server.
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### Preserving rendered tiles
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Tiles that have already been rendered will be stored in `/data/tiles/`. To make sure that this data survives container restarts, you should create another volume for it:
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```
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docker volume create osm-tiles
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docker run \
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-p 8080:80 \
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-v osm-data:/data/database/ \
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-v osm-tiles:/data/tiles/ \
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-d overv/openstreetmap-tile-server \
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run
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```
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**If you do this, then make sure to also run the import with the `osm-tiles` volume to make sure that caching works properly across updates!**
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### Enabling automatic updating (optional)
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Given that you've set up your import as described in the *Automatic updates* section during server setup, you can enable the updating process by setting the `UPDATES` variable while running your server as well:
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```
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docker run \
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-p 8080:80 \
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-e REPLICATION_URL=https://planet.openstreetmap.org/replication/minute/ \
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-e MAX_INTERVAL_SECONDS=60 \
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-e UPDATES=enabled \
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-v osm-data:/data/database/ \
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-v osm-tiles:/data/tiles/ \
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-d overv/openstreetmap-tile-server \
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run
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```
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This will enable a background process that automatically downloads changes from the OpenStreetMap server, filters them for the relevant region polygon you specified, updates the database and finally marks the affected tiles for rerendering.
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### Tile expiration (optional)
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Specify custom tile expiration settings to control which zoom level tiles are marked as expired when an update is performed. Tiles can be marked as expired in the cache (TOUCHFROM), but will still be served
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until a new tile has been rendered, or deleted from the cache (DELETEFROM), so nothing will be served until a new tile has been rendered.
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The example tile expiration values below are the default values.
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```
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docker run \
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-p 8080:80 \
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-e REPLICATION_URL=https://planet.openstreetmap.org/replication/minute/ \
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-e MAX_INTERVAL_SECONDS=60 \
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-e UPDATES=enabled \
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-e EXPIRY_MINZOOM=13 \
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-e EXPIRY_TOUCHFROM=13 \
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-e EXPIRY_DELETEFROM=19 \
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-e EXPIRY_MAXZOOM=20 \
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-v osm-data:/data/database/ \
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-v osm-tiles:/data/tiles/ \
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-d overv/openstreetmap-tile-server \
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run
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```
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### Cross-origin resource sharing
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To enable the `Access-Control-Allow-Origin` header to be able to retrieve tiles from other domains, simply set the `ALLOW_CORS` variable to `enabled`:
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```
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docker run \
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-p 8080:80 \
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-v osm-data:/data/database/ \
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-e ALLOW_CORS=enabled \
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-d overv/openstreetmap-tile-server \
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run
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```
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### Connecting to Postgres
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To connect to the PostgreSQL database inside the container, make sure to expose port 5432:
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```
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docker run \
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-p 8080:80 \
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-p 5432:5432 \
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-v osm-data:/data/database/ \
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-d overv/openstreetmap-tile-server \
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run
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```
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Use the user `renderer` and the database `gis` to connect.
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```
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psql -h localhost -U renderer gis
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```
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The default password is `renderer`, but it can be changed using the `PGPASSWORD` environment variable:
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```
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docker run \
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-p 8080:80 \
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-p 5432:5432 \
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-e PGPASSWORD=secret \
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-v osm-data:/data/database/ \
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-d overv/openstreetmap-tile-server \
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run
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```
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## Performance tuning and tweaking
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Details for update procedure and invoked scripts can be found here [link](https://ircama.github.io/osm-carto-tutorials/updating-data/).
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### THREADS
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The import and tile serving processes use 4 threads by default, but this number can be changed by setting the `THREADS` environment variable. For example:
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```
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docker run \
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-p 8080:80 \
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-e THREADS=24 \
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-v osm-data:/data/database/ \
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-d overv/openstreetmap-tile-server \
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run
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```
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### CACHE
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The import and tile serving processes use 800 MB RAM cache by default, but this number can be changed by option -C. For example:
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```
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docker run \
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-p 8080:80 \
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-e "OSM2PGSQL_EXTRA_ARGS=-C 4096" \
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-v osm-data:/data/database/ \
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-d overv/openstreetmap-tile-server \
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run
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```
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### AUTOVACUUM
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The database use the autovacuum feature by default. This behavior can be changed with `AUTOVACUUM` environment variable. For example:
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```
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docker run \
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-p 8080:80 \
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-e AUTOVACUUM=off \
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-v osm-data:/data/database/ \
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-d overv/openstreetmap-tile-server \
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run
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```
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### FLAT_NODES
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If you are planning to import the entire planet or you are running into memory errors then you may want to enable the `--flat-nodes` option for osm2pgsql. You can then use it during the import process as follows:
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```
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docker run \
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-v /absolute/path/to/luxembourg.osm.pbf:/data/region.osm.pbf \
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-v osm-data:/data/database/ \
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-e "FLAT_NODES=enabled" \
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overv/openstreetmap-tile-server \
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import
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```
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Warning: enabling `FLAT_NOTES` together with `UPDATES` only works for entire planet imports (without a `.poly` file). Otherwise this will break the automatic update script. This is because trimming the differential updates to the specific regions currently isn't supported when using flat nodes.
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### Benchmarks
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You can find an example of the import performance to expect with this image on the [OpenStreetMap wiki](https://wiki.openstreetmap.org/wiki/Osm2pgsql/benchmarks#debian_9_.2F_openstreetmap-tile-server).
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## Troubleshooting
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### ERROR: could not resize shared memory segment / No space left on device
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If you encounter such entries in the log, it will mean that the default shared memory limit (64 MB) is too low for the container and it should be raised:
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```
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renderd[121]: ERROR: failed to render TILE default 2 0-3 0-3
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renderd[121]: reason: Postgis Plugin: ERROR: could not resize shared memory segment "/PostgreSQL.790133961" to 12615680 bytes: ### No space left on device
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```
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To raise it use `--shm-size` parameter. For example:
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```
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docker run \
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-p 8080:80 \
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-v osm-data:/data/database/ \
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--shm-size="192m" \
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-d overv/openstreetmap-tile-server \
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run
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```
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For too high values you may notice excessive CPU load and memory usage. It might be that you will have to experimentally find the best values for yourself.
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### The import process unexpectedly exits
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You may be running into problems with memory usage during the import. Have a look at the "Flat nodes" section in this README.
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## License
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```
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Copyright 2019 Alexander Overvoorde
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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```
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