travis-ci: deploy packages from tagged revisions

See tarantool/tarantool#3745

.travis.yml

@@ -42,7 +42,7 @@ before_deploy:
   - ls -l build/
 
 deploy:
-  # Deploy packages to PackageCloud
+  # Deploy packages to PackageCloud from master branch
   - provider: packagecloud
     username: tarantool
     repository: "1_10"
@@ -75,6 +75,44 @@ deploy:
     on:
       branch: master
       condition: -n "${OS}" && -n "${DIST}" && -n "${PACKAGECLOUD_TOKEN}" && "${TRAVIS_EVENT_TYPE}" != 'cron'
+
+  # Deploy packages to PackageCloud from tags
+  # see:
+  #   * https://github.com/tarantool/tarantool/issues/3745
+  #   * https://github.com/travis-ci/travis-ci/issues/7780#issuecomment-302389370
+  - provider: packagecloud
+    username: tarantool
+    repository: "1_10"
+    token: ${PACKAGECLOUD_TOKEN}
+    dist: ${OS}/${DIST}
+    package_glob: build/*.{rpm,deb,dsc}
+    skip_cleanup: true
+    on:
+      tags: true
+      condition: -n "${OS}" && -n "${DIST}" && -n "${PACKAGECLOUD_TOKEN}" && "${TRAVIS_EVENT_TYPE}" != 'cron'
+
+  - provider: packagecloud
+    username: tarantool
+    repository: "2x"
+    token: ${PACKAGECLOUD_TOKEN}
+    dist: ${OS}/${DIST}
+    package_glob: build/*.{rpm,deb,dsc}
+    skip_cleanup: true
+    on:
+      tags: true
+      condition: -n "${OS}" && -n "${DIST}" && -n "${PACKAGECLOUD_TOKEN}" && "${TRAVIS_EVENT_TYPE}" != 'cron'
+
+  - provider: packagecloud
+    username: tarantool
+    repository: "2_2"
+    token: ${PACKAGECLOUD_TOKEN}
+    dist: ${OS}/${DIST}
+    package_glob: build/*.{rpm,deb,dsc}
+    skip_cleanup: true
+    on:
+      tags: true
+      condition: -n "${OS}" && -n "${DIST}" && -n "${PACKAGECLOUD_TOKEN}" && "${TRAVIS_EVENT_TYPE}" != 'cron'
+
   # Archive packages
   # - provider: script
   #   script: ./travis-archive.sh modules