Added curl to Appliance images

zabbix-appliance/alpine/Dockerfile

@@ -142,6 +142,7 @@ RUN addgroup zabbix && \
     apk update && \
     apk add ${APK_FLAGS_PERSISTENT} \
             bash \
+            curl \
             fping \
             iputils \
             libcurl \

zabbix-appliance/centos/Dockerfile

@@ -143,6 +143,7 @@ RUN groupadd --system zabbix && \
                                         http://repo.zabbix.com/non-supported/rhel/7/x86_64/fping-3.10-1.el7.x86_64.rpm  && \
     yum ${YUM_FLAGS_PERSISTENT} install epel-release && \
     yum ${YUM_FLAGS_PERSISTENT} install \
+            curl \
             OpenIPMI-libs \
             dejavu-sans-fonts \
             java-1.8.0-openjdk-headless \

zabbix-appliance/rhel/Dockerfile

@@ -53,6 +53,7 @@ COPY ["licenses", "/licenses"]
 
 ### Add necessary Red Hat repos here
 RUN INSTALL_PKGS="OpenIPMI-libs \
+            curl \
             dejavu-sans-fonts \
             fping \
             iksemel \

zabbix-appliance/ubuntu/Dockerfile

@@ -158,6 +158,7 @@ RUN apt-get ${APT_FLAGS_COMMON} update && \
     echo "deb http://nginx.org/packages/ubuntu/ $DISTRIB_CODENAME nginx" >> /etc/apt/sources.list.d/nginx.list && \
     apt-get ${APT_FLAGS_COMMON} update && \
     apt-get ${APT_FLAGS_PERSISTENT} install \
+            curl \
             fping \
             libcurl4 \
             libiksemel3 \