Enable dind

Author: goarsna

README.rst

@@ -66,6 +66,15 @@ If you want to use a locally present openapi schema, you can skip fetching the o
 by setting the ``USE_LOCAL_API_JSON`` environment variable. Doing so you have to manually provide the
 ``api.json`` file containing the openapi schema in the current working directory.
 
+Generate Bindings Using Docker in Docker (dind)
+-----------------------------------------------
+
+Bindings are generated using the openapi-generator-cli docker container. If your environment itself runs in
+a docker container, the openapi-generator-cli container has to be started as a sibling container. For
+sibling containers, volumes cannot be mounted as usual. They have to be passed through from the parent
+container. For this to work you have to set the ``PARENT_CONRAINER_ID`` environment variable to specify the
+parent container in a dind environment.
+
 Generating Bindings on a Filesystem Shared With Another Container
 -----------------------------------------------------------------
 

generate.sh

@@ -69,20 +69,31 @@ else
     export VERSION=$(http ${PULP_URL}status/ | jq --arg plugin $COMPONENT_NAME -r '.versions[] | select(.component == $plugin) | .version')
 fi
 
+# Mount volumes from parent container with `--volumes-from` option if the
+# `PARENT_CONTAINER_ID` is set.
+if [ -z $PARENT_CONTAINER_ID ]
+then
+  VOLUME_OPTION="--volume ${PWD}:${volume_name}"
+  VOLUME_DIR="/local"
+else
+  VOLUME_OPTION="--volumes-from ${PARENT_CONTAINER_ID}:rw"
+  VOLUME_DIR="${PWD}"
+fi
+
 echo ::group::BINDINGS
 if [ $2 = 'python' ]
 then
     $container_exec run \
         $ULIMIT_COMMAND \
         $USER_COMMAND \
         --rm \
-        -v ${PWD}:$volume_name \
+        ${VOLUME_OPTION} \
         docker.io/openapitools/openapi-generator-cli:v4.3.1 generate \
-        -i /local/api.json \
+        -i ${VOLUME_DIR}/api.json \
         -g python \
-        -o /local/$1-client \
+        -o ${VOLUME_DIR}/$1-client \
         --additional-properties=packageName=pulpcore.client.$1,projectName=$1-client,packageVersion=${VERSION},domainEnabled=${DOMAIN_ENABLED} \
-        -t /local/templates/python \
+        -t ${VOLUME_DIR}/templates/python \
         --skip-validate-spec \
         --strict-spec=false
     cp python/__init__.py $1-client/pulpcore/
@@ -98,14 +109,14 @@ then
     $container_exec run \
         $ULIMIT_COMMAND \
         $USER_COMMAND \
-        --rm -v ${PWD}:$volume_name \
+        --rm ${VOLUME_OPTION} \
         docker.io/openapitools/openapi-generator-cli:v4.3.1 generate \
-        -i /local/api.json \
+        -i ${VOLUME_DIR}/api.json \
         -g ruby \
-        -o /local/$1-client \
+        -o ${VOLUME_DIR}/$1-client \
         --additional-properties=gemName=$1_client,gemLicense="GPLv2+",gemVersion=${VERSION},gemHomepage=https://github.com/pulp/$1 \
         --library=faraday \
-        -t /local/templates/ruby \
+        -t ${VOLUME_DIR}/templates/ruby \
         --skip-validate-spec \
         --strict-spec=false
 fi
@@ -114,12 +125,12 @@ then
     $container_exec run \
         $ULIMIT_COMMAND \
         $USER_COMMAND \
-        --rm -v ${PWD}:$volume_name \
+        --rm ${VOLUME_OPTION} \
         docker.io/openapitools/openapi-generator-cli:v5.2.1 generate \
-        -i /local/api.json \
+        -i ${VOLUME_DIR}/api.json \
         -g typescript-axios \
-        -o /local/$1-client \
-	      -t /local/templates/typescript-axios \
+        -o ${VOLUME_DIR}/$1-client \
+	      -t ${VOLUME_DIR}/templates/typescript-axios \
         --skip-validate-spec \
         --strict-spec=false
 fi