Use community php docker images. Test against nts and zts (#94)

* Use community php docker images. Test against nts and zts

* Use non-rc 7.2

* Fetch the expected installer signature

Author: chingor13

Dockerfile

@@ -23,7 +23,9 @@ RUN mkdir -p /build && \
         gcc \
         libc-dev \
         make \
-        autoconf
+        autoconf \
+        git \
+        unzip
 
 COPY . /build/
 
@@ -41,7 +43,14 @@ RUN phpize && \
 
 WORKDIR /build
 
-RUN composer install && \
+RUN EXPECTED_SIGNATURE=$(curl -f https://composer.github.io/installer.sig) && \
+    php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');" && \
+    ACTUAL_SIGNATURE=$(php -r "echo (hash_file('SHA384', 'composer-setup.php'));") && \
+    test $EXPECTED_SIGNATURE = $ACTUAL_SIGNATURE && \
+    php composer-setup.php && \
+    php -r "unlink('composer-setup.php');"
+
+RUN php composer.phar install && \
     vendor/bin/phpcs --standard=./phpcs-ruleset.xml && \
     vendor/bin/phpunit && \
     php -d extension=opencensus.so vendor/bin/phpunit

cloudbuild.yaml

@@ -1,17 +1,29 @@
 # This cloudbuild.yaml is used to test the php extension against multiple versions of php
 steps:
   - name: gcr.io/cloud-builders/docker
-    args: ['build', '--build-arg', 'BASE_IMAGE=gcr.io/google-appengine/php71', '.']
+    args: ['build', '--build-arg', 'BASE_IMAGE=php:7.1', '.']
     waitFor: ['-']
-    id: php71
+    id: php71-nts
   - name: gcr.io/cloud-builders/docker
-    args: ['build', '--build-arg', 'BASE_IMAGE=gcr.io/google-appengine/php70', '.']
+    args: ['build', '--build-arg', 'BASE_IMAGE=php:7.1-zts', '.']
     waitFor: ['-']
-    id: php70
+    id: php71-zts
   - name: gcr.io/cloud-builders/docker
-    args: ['build', '--build-arg', 'BASE_IMAGE=gcr.io/google-appengine/php72', '.']
+    args: ['build', '--build-arg', 'BASE_IMAGE=php:7.0', '.']
     waitFor: ['-']
-    id: php72
+    id: php70-nts
+  - name: gcr.io/cloud-builders/docker
+    args: ['build', '--build-arg', 'BASE_IMAGE=php:7.0-zts', '.']
+    waitFor: ['-']
+    id: php70-zts
+  - name: gcr.io/cloud-builders/docker
+    args: ['build', '--build-arg', 'BASE_IMAGE=php:7.2', '.']
+    waitFor: ['-']
+    id: php72-nts
+  - name: gcr.io/cloud-builders/docker
+    args: ['build', '--build-arg', 'BASE_IMAGE=php:7.2-zts', '.']
+    waitFor: ['-']
+    id: php72-zts
   - name: gcr.io/cloud-builders/docker
     args: ['build', '--build-arg', 'BASE_IMAGE=gcr.io/php-stackdriver/php71-32bit', '.']
     waitFor: ['-']