Address curl being broken by default in Alpine

SeanTAllen · SeanTAllen · commit cb58d5cdcb1b · 2019-08-06T14:15:07.000-04:00
The internet says this will work. We shall see.

[skip ci]
diff --git a/.ci-dockerfiles/alpine-llvm-5/Dockerfile b/.ci-dockerfiles/alpine-llvm-5/Dockerfile
@@ -2,7 +2,9 @@ FROM alpine
 
 ENV LLVM_VERSION 5
 
-RUN apk add --update \
+RUN apk update \
+  && apk upgrade \
+  && apk add --update \
   alpine-sdk \
   binutils-gold \
   llvm${LLVM_VERSION} \
diff --git a/.ci-dockerfiles/alpine-llvm-7/Dockerfile b/.ci-dockerfiles/alpine-llvm-7/Dockerfile
@@ -2,7 +2,9 @@ FROM alpine
 
 ENV LLVM_VERSION 7
 
-RUN apk add --update \
+RUN apk update \
+  && apk upgrade \
+  && apk add --update \
   alpine-sdk \
   binutils-gold \
   llvm${LLVM_VERSION} \
diff --git a/.ci-dockerfiles/alpine/Dockerfile b/.ci-dockerfiles/alpine/Dockerfile
@@ -1,6 +1,8 @@
 FROM alpine
 
-RUN apk add --update \
+RUN apk update \
+  && apk upgrade \
+  && apk add --update \
   alpine-sdk \
   binutils-gold \
   libexecinfo-dev \
diff --git a/.dockerhub/alpine/Dockerfile b/.dockerhub/alpine/Dockerfile
@@ -2,7 +2,9 @@ FROM alpine:3.9
 
 ENV LLVM_VERSION 5
 
-RUN apk add --update --no-cache \
+RUN apk update \
+  && apk upgrade \
+  && apk add --update \
   alpine-sdk \
   binutils-gold \
   llvm${LLVM_VERSION} \
