[gnome-runtime-images/fix-stuff] always agree if there's an install promt

[Jordan Petridis <jpetridis src gnome org>]

commit a1a129d0e6764af70dde96482017152287379f58
Author: Jordan Petridis <jordanpetridis protonmail com>
Date:   Tue Jul 3 20:21:39 2018 +0000

    always agree if there's an install promt

 gnome-3-26/Dockerfile            | 2 +-
 gnome-3-28/Dockerfile            | 2 +-
 gnome-master/Dockerfile          | 2 +-
 sdk-bundles/rust-bundle.template | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/gnome-3-26/Dockerfile b/gnome-3-26/Dockerfile
index 6e13827..e3c44b7 100644
--- a/gnome-3-26/Dockerfile
+++ b/gnome-3-26/Dockerfile
@@ -1,3 +1,3 @@
 FROM registry.gitlab.gnome.org/gnome/gnome-runtime-images/base
 
-RUN flatpak install gnome org.gnome.Sdk//3.26 org.gnome.Platform//3.26
+RUN flatpak install -y gnome org.gnome.Sdk//3.26 org.gnome.Platform//3.26
diff --git a/gnome-3-28/Dockerfile b/gnome-3-28/Dockerfile
index 596b73d..eea7dc2 100644
--- a/gnome-3-28/Dockerfile
+++ b/gnome-3-28/Dockerfile
@@ -1,3 +1,3 @@
 FROM registry.gitlab.gnome.org/gnome/gnome-runtime-images/base
 
-RUN flatpak install gnome org.gnome.Sdk//3.28 org.gnome.Platform//3.28
+RUN flatpak install -y gnome org.gnome.Sdk//3.28 org.gnome.Platform//3.28
diff --git a/gnome-master/Dockerfile b/gnome-master/Dockerfile
index 86b20f7..7575aaf 100644
--- a/gnome-master/Dockerfile
+++ b/gnome-master/Dockerfile
@@ -1,3 +1,3 @@
 FROM registry.gitlab.gnome.org/gnome/gnome-runtime-images/base
 
-RUN flatpak install gnome-nightly org.gnome.Sdk org.gnome.Platform
+RUN flatpak install -y gnome-nightly org.gnome.Sdk org.gnome.Platform
diff --git a/sdk-bundles/rust-bundle.template b/sdk-bundles/rust-bundle.template
index 2e2d6e4..fadd0a7 100644
--- a/sdk-bundles/rust-bundle.template
+++ b/sdk-bundles/rust-bundle.template
@@ -1,3 +1,3 @@
 FROM @BASE_IMAGE@
 
-RUN flatpak install flathub org.freedesktop.Sdk.Extension.rust-stable
\ No newline at end of file
+RUN flatpak install -y flathub org.freedesktop.Sdk.Extension.rust-stable
\ No newline at end of file