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nicholasciolijonathanrainer
nicholascioli
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jonathanrainer
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feat!: use new config file for MCP (#28)
* feat!: use new config file for MCP This commit updates the MCP run script to use the new config file instead of arguments to comply with breaking changes in the MCP server. BREAKING: Certain environment variables are now ignored. Co-authored-by: jonathanrainer <[email protected]>
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‎Dockerfile‎

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@@ -6,7 +6,7 @@ ARG S6_OVERLAY_VERSION=3.2.1.0
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# renovate: datasource=github-releases depName=apollographql/router
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ARG APOLLO_ROUTER_VERSION=2.4.0
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# renovate: datasource=github-releases depName=apollographql/apollo-mcp-server
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ARG APOLLO_MCP_SERVER_VERSION=0.5.2
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ARG APOLLO_MCP_SERVER_VERSION=0.6.0
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LABEL org.opencontainers.image.version=0.0.8
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LABEL org.opencontainers.image.vendor="Apollo GraphQL"

‎README.md‎

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@@ -50,7 +50,7 @@ If you wish to enable it for testing purposes then set the environment variable
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...
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```
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See [below](#configuring-using-environment-variables) for information on configuring the MCP Server
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See the example [config file](config/mcp_config.yaml) for information on configuring the MCP Server.
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## Configuring Using Local Files
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@@ -149,14 +149,4 @@ these are as follows:
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|----------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| `APOLLO_KEY` | A valid API Key for Apollo Studio |
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| `APOLLO_GRAPH_REF` | The Graph Ref in Apollo Studio referenced by the Router and MCP Server |
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| `MCP_ALLOW_MUTATIONS` | Possible values: `none`, don't allow any mutations, `explicit` allow explicit mutations, but don't allow the LLM to build them, `all` Allow the LLM to build mutations |
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| `MCP_COLLECTION` | The ID of an operation collection to use as the source for operations (requires `APOLLO_KEY`). |
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| `MCP_DISABLE_TYPE_DESCRIPTION` | Disable operation root field types in tool description |
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| `MCP_DISABLE_SCHEMA_DESCRIPTION` | Disable schema type definitions referenced by all fields returned by the operation in the tool description |
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| `MCP_ENABLE` | Enable the MCP Server |
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| `MCP_EXPLORER` | Expose a tool that returns the URL to open a GraphQL operation in Apollo Explorer (requires `APOLLO_GRAPH_REF`) |
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| `MCP_HEADERS` | A list of comma separated, key value pairs (separated by `:`s), of headers to send to the GraphQL endpoint |
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| `MCP_INTROSPECTION` | Enable the `--introspection` option for the MCP Server |
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| `MCP_LOG_LEVEL` | Change the level at which the MCP Server logs, possible values: `ERROR`, `WARN`, `INFO`, `DEBUG`, `TRACE` |
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| `MCP_SSE` | Use SSE as the transport protocol rather than streamable HTTP |
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| `MCP_UPLINK_MANIFEST` | Enable use of Uplink to get the persisted queries (Requires `APOLLO_KEY` and `APOLLO_GRAPH_REF`) |

‎config/mcp_config.yaml‎

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# yaml-language-server: $schema=https://github.com/apollographql/apollo-mcp-server/releases/download/v0.6.0/config.schema.json
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################################################################################
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# Example MCP configuration
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#
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# Note: Refer to the official documentation for info on what should be present
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# https://www.apollographql.com/docs/apollo-mcp-server/command-reference
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################################################################################
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# If you have custom scalars that you wish to use in your operations / schema, use the following
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# configuration
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#
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# ```yaml
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# custom_scalars: /config/custom_scalars.graphql
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# ```
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# Use uplink for operations
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#
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# Note: If you wish to use files inside the container instead, use the following configuration:
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#
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# ```yaml
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# operations:
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# source: local
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# paths:
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# - /config/operations
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# ```
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#
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# Note: If you wish to use a persisted query manifest instead, use the following configuration:
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#
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# ```yaml
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# operations:
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# source: manifest
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# path: /config/persisted_queries_manifest.json
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# ```
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operations:
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source: uplink
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# Use uplink for schema information
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#
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# Note: If you wish to use a file inside the container instead, use the following configuration:
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#
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# ```yaml
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# schema:
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# source: local
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# path: /config/api_schema.graphql
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# ```
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schema:
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source: uplink
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# Configure the MCP server to listen for streamable HTTP messages on port 5000
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# for all addresses
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transport:
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type: streamable_http
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address: "0.0.0.0"
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port: 5000

‎s6_service_definitions/mcp/run‎

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# Set our working directory
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cd /opt || exit
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if [ -v MCP_ENABLE ]; then
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if [[ -f /config/api_schema.graphql ]]; then
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ARGS+=(--schema /config/api_schema.graphql)
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fi
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if [[ -f /config/custom_scalars.graphql ]]; then
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ARGS+=(--custom-scalars-config /config/custom_scalars.graphql)
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fi
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if [[ -v MCP_HEADERS ]]; then
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IFS=',' read -ra HEADERS <<< "$MCP_HEADERS"
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for header in "${HEADERS[@]}"; do
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ARGS+=(--header "$header")
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done
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fi
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if [[ -v MCP_SSE ]]; then
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ARGS+=(--sse-address 0.0.0.0)
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else
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ARGS+=(--http-address 0.0.0.0)
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fi
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if [[ -v MCP_INTROSPECTION ]]; then
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ARGS+=(--introspection)
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fi
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if [[ -v MCP_UPLINK_MANIFEST ]]; then
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ARGS+=(--uplink-manifest)
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fi
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if [[ -v MCP_COLLECTION ]]; then
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ARGS+=(--collection "$MCP_COLLECTION")
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fi
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# Only pass through operations if the folder contains files
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if [ "$(ls -A /config/operations)" ]; then
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ARGS+=(--operations /config/operations)
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fi
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# See documentation for available options
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# https://www.apollographql.com/docs/apollo-mcp-server/command-reference
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if [[ -v MCP_EXPLORER ]]; then
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ARGS+=(--explorer)
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fi
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if [[ -f /config/persisted_queries_manifest.json ]]; then
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ARGS+=(--manifest /config/persisted_queries_manifest.json)
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fi
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if [[ -v MCP_DISABLE_TYPE_DESCRIPTION ]]; then
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ARGS+=(--disable-type-description)
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fi
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if [[ -v MCP_DISABLE_SCHEMA_DESCRIPTION ]]; then
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ARGS+=(--disable-schema-description)
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fi
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if [[ -v MCP_ALLOW_MUTATIONS ]]; then
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ARGS+=(--allow-mutations "$MCP_ALLOW_MUTATIONS")
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fi
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if [[ -v MCP_LOG_LEVEL ]]; then
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ARGS+=(--log "$MCP_LOG_LEVEL")
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fi
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exec /opt/apollo-mcp-server "${ARGS[@]}"
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if [ -v MCP_ENABLE ]; then
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exec /opt/apollo-mcp-server "/config/mcp_config.yaml"
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else
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while true; do sleep 10000; done
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while true; do sleep 10000; done
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fi
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