Add Travis job for uploading zipfile to S3 (pulumi#29)

.gitignore

@@ -1,2 +1,3 @@
 .pulumi
 Pulumi.*.yaml
+node_modules/

.travis.yml

@@ -0,0 +1,9 @@
+if: branch = master
+sudo: true # give us 7.5GB and >2 bursted cores.
+before_install:
+ # Install the AWS CLI, which is required by upload-examples.sh
+ - pip install --upgrade --user awscli
+script:
+ - ./upload-examples.sh
+notifications:
+ webhooks: https://ufci1w66n3.execute-api.us-west-2.amazonaws.com/stage/travis

upload-examples.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+# publish-examples.sh downloads a GitHub zipfile of examples repo and writes to
+# s3:https://rel.pulumi.com/releases/examples/pulumi-examples.zip.
+set -o nounset -o errexit -o pipefail
+
+ROOT=$(dirname $0)
+EXAMPLES_FILENAME="pulumi.examples.zip"
+EXAMPLES_PATH="${ROOT}/${EXAMPLES_FILENAME}"
+
+echo -e "Downloading ${EXAMPLES_PATH} to publish to S3"
+
+# Download the zipfile for the examples repo at master
+curl -H "Authorization: token ${GITHUB_TOKEN}" \
+ -L "https://github.com/pulumi/examples/archive/master.zip" > ${EXAMPLES_PATH}
+
+# Assume the UploadPulumiReleases role first
+CREDS_JSON=$(aws sts assume-role \
+ --role-arn "arn:aws:iam::058607598222:role/UploadPulumiReleases" \
+ --role-session-name "upload-plugin-pulumi-resource-aws" \
+ --external-id "upload-pulumi-release")
+
+# Use the credentials we just assumed
+export AWS_ACCESS_KEY_ID=$(echo ${CREDS_JSON} | jq ".Credentials.AccessKeyId" --raw-output)
+export AWS_SECRET_ACCESS_KEY=$(echo ${CREDS_JSON} | jq ".Credentials.SecretAccessKey" --raw-output)
+export AWS_SECURITY_TOKEN=$(echo ${CREDS_JSON} | jq ".Credentials.SessionToken" --raw-output)
+
+aws s3 cp --only-show-errors "${EXAMPLES_PATH}" "s3:https://rel.pulumi.com/examples/${EXAMPLES_FILENAME}" 
+
+rm "${EXAMPLES_PATH}"